Ok, that makes sense... :-)
Hp pavilion a623n 320GB X! 400GB X1 (720 Gb total hd space) 3.25GB physical memory Dell 2005 FPW 20.1 Flat panel display.Amd Athlon X2 5600+ duel core CPU
I though 720 GB total space should be enough to use it for more then two OS.
But you are right, with a vm you will have less work.