heya fish0o;
If you want to take some of the guess work out of it read some reviews where they compare the different brands.
Getting a Genuine ATI us usually the best bet to take the guesswork out of it, goto pricewatch.com and find the best deal reguardless if its a Genuine ATI, or if its another manufacturer, and use common sense, i have heard that Gigabyte is a pain in the ass if you have to RMA, but ive never had to do it so i cant say for sure. Im sure some of the guys will have an oppinion on which manufacturer to go with.