I still play around with Puppy but rarely any other Linux any more. I've gotten to hate dual booting, so I mainly stay in Windows since I need it for my work.
I have Zenwalk, http://www.zenwalk.org/ installed exclusively on one machine just to stay up to speed on Linux a little. Never much liked dual booting and don't like VM'ing at all. Zenwalk pretty much has support for everything out of the box such as flash and Windows codecs and unrar installed by default, so no need to go hunting that junk down.
24GB's of memory?! Ridiculous!!