Eon_Blue,
If you don't like to spend $$$ then you want a ATI 9600 PRO. For around $160 you can buy one and it will be just as fast as the 5600 Ultra (faster if you get the non flip chip one) which sells for $200+. Plus the ATI works well with shader 2.0 which the Nvidia does not. Rumor has it Nvidia will "fix" this in upcoming drivers but can you be sure this will happen? Most of the upcoming DX9 games will use this shader and you will need it for future games.