I'm looking to upgrade my graphics card (currently Nvidia Geforce 8400 GS). Processor is AMD Athlon 64 X2 dual core 6000+, 3GHz and I have 2GB of RAM (on Windows XP). My budget is flexible but I don't want to spend much more than £70-80 ($115-130); I don't want a top of the range card, just one that'll let me play most games without a problem at 1024x768. Thanks for your help.