Alright, I had originally thought that the issue was my Keyboard. But after some extensive troubleshooting throughout the day - I've concluded that my Motherboard doesn't detect my hard drives. Not the solution isn't exactly as simple as you might think, here's the break down:
The Hardware
Motherboard: ASUS M3A78-EM
I have THREE Hard drives.
1 x WD800 - 80gig (oldest) - Completely blank, but formated on old PC. [IDE]
1 x Maxtor DiamondMax Plus 9 - 200gig - Original system from old PC, all files and partitions stored here. [IDE]
1 x Seagate Barracuda 7200 - 250gig (newest) - [SATA]
What I've Done So Far...
When I boot the system when an IDE Hard drive plugged in as a Primary, with correct jumper settings on the HD, the computer freezes on the M3A78-EM window. It tells me to press DEL to enter Setup, but nothing happens. I concluded that the computer freezes at this point.
So I've tried to plug in each hard drive on its own, so there is no Slave/Master crap, and it's all Cable Set. But still, I get the same result.
No matter what I try, the Motherboard just doesn't seem to want to acknowledge the fact that I'm plugging a Hard drive into it. The IDE bus works, I tested it on my DVD-DL drive and the drive spins up just fine and begins reading the CD inside.
My PSU is supplying power the devices.
The only thing I haven't done is reset the CMOS, because i'm unsure exactly what this does and I'm not certain the process behind it and whether or not it will fix my problem. Any help is appreciated.