My PC has an onboard NVIDIA GPU, which is chewing up 25% of the 1 GB of RAM I have. I'd like some suggestions for a PCI-e video card. Not a gamer, but I do occasionally download a TV show from iTunes. Currently running XP Media Center Edition, but I have the MS upgrade disk for Vista. The Upgrade Advisor says I'm OK to run Home Premium, but I'm in no hurry to load Vista (and I'll probably want to add a TV tuner card before I do, anyway).