My husband is a power user of these deal-of-the-day type sites like woot.com, where one item is on super duper markdown until they sell out. He knows where to buy electronics, skater dude gear, outdoorsy stuff, and now baby stuff.
The one he just sent me– BabySteals.com— looks pretty awesome to me. As I am writing this post, they are selling the Blush topless undershirt for 58% off.