Alright... here's some good sites to buy dolls from.
http://eluts.com/ Luts has 60cm & 45 cm dolls - also one 26cm doll, but they're discontinuing that line. Check out the other companies that Luts sells too... Blue Fairy has cute minis (my friend has a Blue Fairy Jerome), D.I.M. has some smaller dolls and Domadoll has the most awesome horseybutt doll.
http://angelsupply.co.kr/eshop/index.php AngelRegion has some really cute minis too. I bought a UFK (Unfinished Kit) from them a while back. Ren is their most popular mold - I have one, and so does my friend.
http://dollmore.net/ Dollmore makes the ugliest, and cheap looking dolls... so ignore theirs. But their site sells Dollkot dolls... and those are hot.
http://bambicrony.net/ Bambicrony only makes 26cm dolls at the mo, but they're crazy cute. I'm pining for a couple of them.
http://www.ainai.com/engThat's CustomHouse's site. Chakri is a Custom House doll, even though I didn't buy him through their site.
And if you really want to learn more about dolls, check out Den of Angels.
http://www.denofangels.com/forums/There's a Marketplace there where people sell their dolls and you can get pretty good deals second hand.
3nodding Over half of my dolls are second hand, bought off DoA.