I've a Dell Dimension e310, which I've previously upgraded memory to 2GB. Has two HD's(not sure if that means it's dual-core??). My integrated video/audio isn't enough for using audio production software nor for my need to work with dual-monitors. I've acquired another PC that's got a NVIDIA Geforce 6200 TurboCache, using a PCIe x 16. My question...is this card gonna' work? I've tried finding out whether my PCI slots support it, can't figure it out. I've gotten the info that my system does have one PCIexpress, but don't know what this "x16" thingy means for me?