Windows 7 on Windows XP Machine

Thanks to Sun Microsystem's VirtualBox I can run both Windows XP and Windows 7 (Release Candidate) on my Windows XP machine with a 2.4GHz Athlon CPU and 2GB of RAM. Naturally, its not the fastest running setup mainly due to RAM, but its really cool for me. I wanted to check out Windows 7 first-hand and I didn't feel like figuring out how to partition my laptop's hard disk into partitions to allow Windows 7 to be run along-side Windows Vista or by overwriting it.

Click to enlarge screenshots.