Optimum Graphics Card for my System?

[Wodrick]

I need some help upgrading my graphics card one last time before I buy a new PC in about a year or so. What would be the range of cards I should be looking at for my aging system?

Motherboard: Biostar M7NCD (8xAGP, 400MHzFSB, DDR400)
Ram: 1G
Processor: 2.13GHz AMD Athlon 2600

Any help would be greatly appreciated. Its driving me nuts with there being so many on the market!! Looking to spend around 100quid.

 

[Cook1]

I'd look for something along the lines of 6600GT, 6800, X700, X800

 

[NoStateofMind]

6600GT FTW!