Be sure to check out Vogue Collectibles sales page (especially if you live in Canada!) for some really fantastic sales (check out Dick Tracy for $55 and some of the Hollywood Glamour outfits and Fashion Zombies at half price).
Also, they have the Malibu Barbie repro on sale for just $15, and the 50th Anniversary Then and Now Barbie for just $5! Ouch--how am I going to pass these up?
I've done business with Vogue (I'm in California), and they are really great!