I run Wary on an Older Athlon, and Racy on a USB for my A8. I just wanted to speak words of praise for this amazing little distro. It's so much in such a small package.

Assuming that you just want to try it out, take a small flash-drive...put puppy on it, and profit. It can be set up as a persistent drive, so adding .PETs to it can carry from one system to another. If you have need of Linux tools, it's also a great way to get them from one system to the next (especially if you need to boot a graphical DE into RAM.)