I have a Dell Inspiron 5100 laptop that I've had for about two years. It is the main PC that I have for personal use. I recently picked up Civilization 4 (used to be a diehard Civ junkie) and found that my video card is inadequate to run it.

I have a Radeon 7500 with 16mb of memory, and according to the game, I need at least a 64mb video card. I've done a bit of research online and it does seem that the video card is removeable (unlike many laptops), and they make a Radeon with 64mb for the Inspiron 5100. Anyone here done a swap like that? Anything to be wary of? I am fairly competent with minor hardware issues, I'm imagining this will be a pretty easy swap since the video card was made for that specific model?
This is what I'm looking at:
http://cgi.ebay.com/ws/eBayISAPI.dll...54&refid=store
Any feedback is much appreciated.
