Todd,
To install a graphics card you really don’t have to be tech savvy.
Cards come with install instuctions. If you are on ATI and going to a newer ATI, then it couldn’t be easier. If you are on Nvidia, go to ATI.com and download catalyst drivers then uninstall Nvidia drivers, shut down PC. Install new card. Start PC. Cancel Windows trying to install their drivers for your card, install catalyst drivers, shut down PC. Restart PC and voila.
Mark
PS…unplug PC before doing this…wait a few minutes (PCs sometimes keep a little power even after unplugged) and then touch PC power supply metal casing to take away static.