Thanks for the Recommendation
I have been trying to play with Linux/Ubuntu, mainly because Linux seems a much better approach than Windows for dedicated video streaming boxes (e.g. those based on XBMC software). I also just got a Raspberry Pi, which is a sort of Anduino-like Linux-based small computer project board.
In playing with them, I have been dual-booting, which is somewhat </understatement> of a hassle. So I appreciate readers who encouraged me to try VirtualBox. Installed last night and seems to be just what the doctor ordered.