Great stuff, I'll try it when I get home tonight. In the mean time, I'm out and about today. Think I should pick up a graphics card which I can always take back if I don't open it.
My motherboard will take 2 x PCIe x16, Single VGA mode: x16 (Default), SLI mode: x8, x8. What do I need to look for to make sure it would be compatible with the Asus P5N-e SLI motherboard?
You can get any Graphics Card which is compatible with a PCI Express x16 Slot, that's the majority of GPU's today since AGP died out in 2004 (the old GPU interface) every graphics card used PCI Express now
If your on a low budget then a good GPU would be the GTX 650Ti or AMD Radeon 7770, if you want to go a little higher in price to allow you to play games at there highest settings then the GTX 660 or AMD Radeon 7850 would be the best choices for a good mid range PC
Cheers.