9800 GT is better Hands Down. But to do that, youd need a better PSU. I'll see if i can update you on what I find tomarrow, cuz i have to sleep now and I need to look up Psu's too, seing as my computer is only 300 watts. If you do some research, do me a favor and put it on here. C:
The 9800 Gt has a 400 watt minimum reccomendation according to the Nvidia webbie
EDIT: If you try doin some research yourself on the video cards, keep this in mind. For Nvidia, anything between 6-8 is awesome for gaming. Like the Gt x600-x800 pwns at gaming, Gt x100-x500 is more casual. and x is just the series. ^.^
Also, 8800 is better thn 9400 and 9600 is better than 9400 (yet 96 is more expensive than 98.
)
Also, for Psu's, Comp Usa/Tiger Direct has a 550 watt Psu for 40$.
'S a shame im ona strict 100$> budget