Hey guys, I am currently running a gaming desktop that I built which has an Asus P6T SE motherboard and I currently have a Sparkle NVIDIA GeForce GTX285 graphics card and I want to know if I would be able to add another graphics card and what specs it would need. Do I need to change any bios or download any software or anything to create an SLI connection or do I simply plug in the second graphics card and reboot my computer? Also, do you know how to add a second hard drive? Or is it a simple plug and play procedure? Oh and also, I have an Antec 1200 case and I haven't been able to get the two front usb's to function, is there something that I need to plug in to make them work or is it possibly faulty hardware?