Talk to the priest that saves the game and ask to give a donation. If you have less than 100 coins he will give you 10 coins until you reach 100 coins. After this happens, deposit the coins, return and repeat as needed. Note: If you try to have the priest give you more than 100 coins he will take them as a donation.
The Empire Sword is a powerful weapon for Ryu, which can only be found in a certain area (as far as I know). Just east of Township, there's a fishing spot which you can only get to by flying on the Great Bird. It's located near the mountain range there. Land there, and walk around and fight some enemies until you see the fish pop out of the water.
At this fishing spot, there is a treasure chest sitting at the bottom of the ocean. Make sure you're equipped with the Deluxe Rod and a few Gold lures, and then cast and reel in the chest. Inside the chest is the almighty Empire Sword, which is actually stronger than the Dragon Sword!
kill a grizzly bear (easy) and you get loads of experience
To earn a lot of money at the start of the game, just go hunting with Bow in the lead. Shoot all the animals to obtain as many Roasts as you want. Then go sell all the Roasts at a nearby shop to earn some nice cash. Selling one Roast alone will earn you 200 zenny!
The StarBringer Sword (StarrSD) can be found by standing on a blue "chance" square in the Thieves' Tomb and fighting repeatedly.