Stray away from the 5600FX, since it\'s seriously flawed.
The 5700FX as well as the new 5900FX are great cards, as they have cleared up the flaws. a 5900NU outperforms a Radeon 9800 Pro on some benchmarks and meets it in others. So really, it isn\'t a bad choice at all.
I own one of those 5900FX cards. Easy as pie to overclock them to regular 5900 speeds and beyond and it performs very well. I bought the e-EGA one for $184 bucks, and I think thats a steal. Radeon 9600XT cards will set you back around $189 dollars.
5900FX > 9600XT and 9700Pro
