If you don't want to fiddle with trying to install a Linux distribution in VMware, then you can download a pre-built virtual machine image of your choice and then ''play'' it in VMware player.
Also, go to del.icio.us and search for ''vmplayer'' and there will be all sorts of goodies in there for you.
Pre-Built Community Images
Also, don't forget that there is another virtual machine program out there called Qemu, I have only had luck with it when I use images from OSZoo. So, try that one out if you're feeling extra geeky!
Qemu Manager (makes image creation easier)
Free OS Zoo
Pint-size luxury and funky style
Shopping for a new car this weekend? See how the BMW X2 stacks up against the Volvo XC40 in our side-by-side comparison.