8600gt or 7800gt or alternative $100 card??

[ronein]

Need advice

TV does 720p/1080i...native resolution at 1366 x 768.
Tried the 8600gt and im not too impressed...will the 7800gt be any better?
Or is there an alternative sub$100 card there??

Thanks!

 

[s44]

2600xt / 3650 (same thing, more or less)