Larger inventory would be a quick step. Then probably something with a little more flash. Perhaps a bar on top done done in flash to really get the user staring and going "damn, I want to see her in that," or "man, I want to be that hot girl" and ultimately get some purchases going. I mean if you look at http://www.victoriassecret.com/ it's kind of overboard on the loud factor, but a nice medium surely wouldn't hurt.