Backup PC is a HP a1000n powered by a Celeron 340 (P) 2.93 with a Intel 845GV chipset. MB is a Asus Guppy-GL6E. It has a integrated 64MB Video card. Can I just buy any new ATI or Nvidia 128 or 256 card to replace it? Or am I limited to a specific card and/or need to buy anything else? Run XP Home and would like a ok/good gaming card for what little I have to work with.