new build Projected Gaming System

This is my second build. I built my first about 8 years ago, and have been upgrading components piece by piece as needed, though each of the upgrades have been relatively small in terms of technological advancement (i.e. I once upgraded my RAM from 2x256MB to 2x512MB), and are usually just intended to replace a worn out component. With this new build my plan is to get a high-end Mobo+CPU (because those are the two things I despise when it comes to upgrading) with mid-level Video and RAM that can be upgraded in a couple years as the (now) high-end components become cheaper. Gaming is my primary intent, however I am sitting happily about 2-3 years behind the curve (for example, I am just now getting into Fallout 3 - not New Vegas) and overclocking is less a necessity and more like a interesting program on the History channel on which one might keep tabs. With that in mind, I am looking to build this system in January and want to lay out a budget now so that I can easily afford it at that time. I will likely be in Thailand or South Korea at that point, for whatever difference that makes. My budget cap was $1500, with less being preferable. I have compared the build price (as best I can) on Newegg, TigerDirect, and MWave with Newegg being the winner, by about $50, at $1374.60 (incl. shipping); hopefully by the time I set to constructing this golem it will be a bit cheaper, but the boot fits as it is. Alright, enough preamble. Here is what I have lined up:

Motherboard: ASUS P9X79 PRO LGA 2011 Intel X79 SATA 6Gb/s USB 3.0 ATX
CPU: Intel Core i7-3820 Sandy Bridge-E 3.6GHz LGA 2011 130W Quad-Core Desktop Processor
CPU Cooling System: Antec Kuhler H2O 620 Liquid Cooling System
RAM: G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Video Card: GIGABYTE GV-R787OC-2GD Radeon HD 7870 GHz Edition 2GB 256-bit GDDR5 PCI Express 3.0 x16 CrossFireX Support
Power Supply: LEPA G900-MA 900W SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply
Case: COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP Black Steel ATX Full Tower Computer Case with USB 3.0, Black Interior and Four Fans-1x 230mm front RED LED fan, 1x 140mm rear fan, 1x 230mm top fan, and 1x 230mm side fan

The links are all point to their respective items as they are listed on Newegg in case the names I have provided are insufficient. As I said, I want the higher end MoBo/CPU for the sake of being able to wait longer before I replace them. The Sandy Beach CPUs don't come with fans so I picked that one after I looked at other models by Thermaltake and Corsair. As far as I could tell by reading, 16GB of RAM should be plenty, and since I am not much of an overclocker I went with DDR3 1600 as it seemed to be pretty standard. I went with a 2-gig video because I wanted to have more than enough room to run the games that are out now (even though I won't be playing them for another 2 years) at their best settings; I figure I can also double this up this model when I find a few spare hundred dollar bills in my laundry.

The power supply was a toss-up for me as I don't know much about the demands of computer components. I plugged the build into a few calculators and got a range of 550-850W. So I decided to go for the model with the best rating on the upper end so that I don't have to worry about it. The case falls into a similar category as the power supply in that I opted to get the one with the best rating, and I was worried about having enough space so I decided to go big; I am not much for fancy stuff, but I do enjoy being able to look into the guts of my creation, and fans always seem to have to be replaced anyways so I picked the model that seemed to have fans that were placed accessibly rather than fashionably.

I am open to suggestions, cautions, and arguments for/against any and all of my build; I do not suffer from ego or sentimentality so feel free to critique/criticize as you see fit.

quote hiigaran

as for the PSU, ive never heard of LEPA before. if youre looking for a budget PSU, look up rosewill. i recommend the capstone series for their higher efficiency.

LEPA are rebranded mid-range Enermax PSUs, it's not a budget PSU.

Thanks for the feedback. Here is the new Mobo/CPU combo I've selected based on the suggestions:

Mobo: ASRock z77 Extreme9 LGA1155 Intel Z77
CPU: Intel i7-3770 Ivy Bridge 3.4 GHz LGA1155 77W 4xCore

I opted to stick with 16GB RAM simply because, while it is nearly 2x the price for 2x the RAM, I would still have to spend the money to upgrade eventually so I am spending it now rather than later.
I looked into Rosewell PSUs, as well as a few other cheaper models, but decided to stick with my initial choice on the grounds that it seemed to be of a quality that wouldn't poop out on me (a problem I have had in the past with cheaper PSUs) quite so readily.
The only reason I listed the CPU cooling system was because the Sandy Bridge CPU didn't ship with one. Fortunately, the newer model I've selected does come with its own thus allowing me to remove the component form my list.

The new price is only slightly cheaper at $1347.46, but that is 2,254 pennies I will happily keep in the coin jar. Any more thoughts/commends/considerations?

Good Call.

Mobo: ASRock Z77 Extreme4 LGA1155

Sorry for the late response, I got moved to 2nd shift for the week and had my days all mixed up.

As far as picking my own components goes, I didn't have anything against your selections. In fact, I was going to use the MSI board you suggested. But I got curious and went looking to see what else was available. The one I picked just had a few bells and whistles that tickled my fancy.

If the build is alright and everything is compatible then I will go ahead and plan on building it. I do have one other question though; I am heating a lot about SSDs and how they, when integrated properly, can improve a systems loading times. But for the price I am hesitant. Will the difference be significant if I buy a 50gb SSD?