upgrade Upgrade PSU and GPU

I AM JUST GOING TO COPY AND PASTE IS THIS COMPATIBLE?

GIGABYTE M68MT-S2

1 x PCI Express x16 slot, running at x16
2 x PCI Express x1 slot
1 x PCI slot

1 x 24-pin ATX main power connector
1 x 4-pin ATX 12V power connector
4 x SATA 3Gb/s connectors
1 x CPU fan header
1 x system fan header
1 x front panel header
1 x front panel audio header
3 x USB 2.0/1.1 headers
1 x parallel port connector
1 x clearing CMOS jumper

PSU = WinPower 450W Power Supply

Details - Support for the Latest Technology - Intel Core 2 Duo and AMD Athlon 64/64FX support aswell 8cm Black Fan Separate 12V rails - Independent 1V rails meeting UL 240VA Safety Requirements High Reliablity - OCP, UVP, OVP, OLP, OTP AND SCP circuits to ensure system s Specifications Approx Dimmensions Length 160mm, Height 90mm, Width 140mm Retail boxed Manufacturer: Winpower 1 x 20/24 Pin Main Power 1 x 4 pin Main Power 1 x 4-pin floppy 1x SATA Power 4 x 4-pin peripheral

I WANT TO REPLACE WITH THIS PSU ********************************
Antec NEO ECO 520C 520W Continuous Power ATX12V

Spec:
Type ATX12V v2.3 / EPS12V
Maximum Power 520W Continuous Power
Fans 120mm Double ball bearing fan
PFC Active
Main Connector 20+4Pin
+12V Rails Single
PCI-Express Connector 1 x 6-Pin, 1 x 6+2-Pin
SATA Power Connector 6
Efficiency > 80%
Energy-Efficient 80 PLUS Certified
Over Voltage Protection Yes
Input Voltage 100 - 240 V
Input Frequency Range 50/60 Hz
Input Current 8A @ 115V, 4A @ 230V
Output +3.3V@24A, +5V@24A, +12V@40A, -12V@0.8A, +5VSB@2.5A
MTBF >100,000 Hours
Approvals cUL,TUV,CB,CE,FCC,CCC, C-TICK,BSMI
Dimensions 5.9" x 5.9" x 3.4"
Weight 4.0 lbs.

1 x Main connector (20+4Pin)
1 x 4+4-Pin ATX12V/EPS12V
6 x Peripheral
6 x SATA
1 x Floppy
2 x PCI-E

Want to replace a ATI Radeon 5450 for a ******************************
GeForce GTX550 Ti




GPU Engine Specs:
192CUDA Cores
900Graphics Clock (MHz)
1800Processor Clock (MHz)
28.8Texture Fill Rate (billion/sec)


Memory Specs:
4.1 GbpsMemory Clock
1024 MBStandard Memory Config
GDDR5Memory Interface
192-bitMemory Interface Width
98.4Memory Bandwidth (GB/sec)


Feature Support:
4.2OpenGL
PCI-E 2.0 x16Bus Support
YesCertified for Windows 7
DirectX 11, 3D Vision, CUDA, PhysX, SLI, PureVideo HD, 3D Vision SurroundSupported Technologies
2-waySLI Options

Display Support:
YesMulti Monitor
2560x1600Maximum Digital Resolution
2048x1536Maximum VGA Resolution
YesHDCP
YesHDMI
Two Dual Link DVI-I, Mini HDMIStandard Display Connectors
InternalAudio Input for HDMI


Standard Graphics Card Dimensions:
8.25 inchesLength
4.376 inchesHeight
Dual slotWidth
Thermal and Power Specs:
100 CMaximum GPU Temperature (in C)
116 WMaximum Graphics Card Power (W)
400WMinimum System Power Requirement (W)
One 6-pinSupplementary Power Connectors

yeah they are compatible. one question though - what is the make and model of your PSU? you just posted specs, and they dont tell me much as far as quality is concerned.

EDIT: ignore that second bit. im reading sideways on the bed

i meant the other one, but never mind. like we said, they are compatible, so you can go ahead and upgrade both.

yeah its all good. and the PSU is easy to do. you just plug stuff in! your choice though, i understand some people dont like doing it.