I usually play around with Ubuntu. I’ve also been tinkering with Fedora and a few others on VMWare. Pretty slick, I downloaded a virtualized build of M0n0wall - not sure what flavor it runs - it’s a really small file. We used to run that at the office on a Linux box as our main router. I was always happy with it. The whole thing was configured with a .PHP based web page interface.
Sorry, always find myself using Windows when I’m doing real work.