Okay, I am totally lazy, so this is going to be short.
Luts is the place that sells Cerberus Project dolls.
Liria runs the shopping service I used to get the doll. Liria is awesome.
Den of Angels is the end-all-be-all English-language SD resource. Lots of links and info. It's a Yahoo! group, and you'll want to join up to get everything it has to offer.
Aimee's site is also awesome and has an incredibly detailed FAQ.
Glomp.net is my main page.
Got it? Good!