Lots of good deals on Ebay for different brands
Handbags: Deals and Steals

Good deals on Balenciaga on Ebay
Authentic Balenciaga handbags and accessories on Ebay

Lots of nice high end brands
http://www.luxury-shops.com/

Lots of LV
Authentic Louis Vuitton Reseller ~ let-trade.com ~

Mixture of high en brands
Jemznjewels.com designer accessories at a fraction of the price.

Hermes and LV
Luxwear Luxury Accessories

I have tons of other sites in mind, but I'm trying to keep this list to handbags and shoes (although I don't know any....)