I recently purchased the L Letterpress Starter Kit. If you are wondering it is compatible with other things like the Sizzix Big Shot. I haven't done anything letterpress related since college, so it's been fun experimenting with the kit. I purchased mine at Archiver's, although you can get your own at lifestylecrafts.com.
I realize now, that I should invest in a second set of the Alphabet script letters. Didn't think about the fact that Peace has two Es before I started setting up to print. I will say that the cleaning clothes are definitely worth buying and make cleanup a snap.
Here are a few snapshots of how the word Peace turned out with deep purple ink.