Okay so new question. I have a system I can build with parts I have laying around, all I'd need is a PSU and boot drives, that I'm thinking of turning into a Windows 7/Windows XP machine. I know how to set up the boot system for each drive,(one for each OS), but am wondering how well I'll be able to run XP on it.

I have a Biostar DDR2 AM2+ board, Atholon 2 dual core CPU, 4 GB of ddr2 ram and a HD6450 Radeon graphics card. Are there any issues I might run into with running XP? I know this system will run 7 but am wondering if XP will be able to run on a system like this.