Ok the 9800 Pro will oblitherate a 9700 Pro (how do I know? I own BOTH), end of story. Example
Athlon 2.2ghz w/9800 Pro=6300 in 3dmark 03
Athlon 2.17ghz w/9700 Pro=4996 in 3dmark 03
BUT lets get into actual games you will play......
UT2K3=I see no diff between the 2
Max Payne 2=9800 Pro runs it quite a bit better but still the 9700 runs it very nicely
CoD=9800 Pro beats the 9700 Pro again just a bit
A game not out yet involving monsters from another dimension= 9800 Pro is noticably smoother but the 9700 Pro is still totally playable and smooth.
In the end, if you wanna be a benchmark burner the 9800 is the way to go. But if you want great gameplay and a reasonable price pick up a 9700 Pro. I picked up mine 2 weeks ago for $230 and newegg.com has one for $220 now. In the Price/Performance world the 9700 Pro KILLS the 9800 Pro(which I paid $330 for). Where as the 9800 Pro kicks the 9700 Pro in the family jewels in the pure performance catagory. And forget any Geforce FX except the 5900nu and MAYBE the 5900XT, looks like Nvidia is getting their act together and making competent drivers so those are a decent option, that is if you can deal with a 9600Pro completly mopping the floor with them in Half-Life 2 and other PURE DX9 games.
Now I'll give you some linkage my friend
9700 Pro's
http://www.newegg.com/app/ViewProduc...alue=3048,3668
9800np
http://www.newegg.com/app/ViewProduc...alog=48&depa=1
9500 Pro
http://www.newegg.com/app/viewProduc...0&searchdepa=1
9600XT
http://www.newegg.com/app/ViewProduc...alog=48&depa=1
5900nu
http://www.newegg.com/app/ViewProduc...alog=48&depa=1
5900XT (aka 5900se)
http://www.newegg.com/app/ViewProduc...alog=48&depa=1
Thats a list of cards I'd recomend, from best deal to...well...not worst, but not as super awsome on the Price/Performance thing and future compatibility. BTW the 9500 Pro is a good card. I had one till a coupla weeks ago (can you guess what happened? I sold it for $200(!?!?!) and spent an extra $30 and got a 9700 Pro) It'll run DX9 games better then ANY Nvidia card and is decently priced.