Infectiousthreads has a great range of gothic, cyber, fetish, and steampunk clothing and some of the best tutus (believe me, they make them fashionable). However, prices on their original stuff such as the tunics, dresses, and tank tops are extremely expensive for what they seem to be. I'm not prepared to drop $50 (plus s&h) on a tank top with some tulle on the bottom just to review whether it's worth that much.
Everything else is great, but give sewing and painting a stab before buying one of their tanks or tunics.