amadman,
http://xxxpresstoys.com
http://adameve.com
http://www.fetishxtoys.com/mall/
http://moneyintoys.com/
http://www.pecash.com/
http://www.mallcom.com
http://www.d9media.com
http://cozyacademy.com/hub/2003/edition046/traffic.asp
I set one up with d9media. It's a stripped down version of adultdvdempire's interface. They have done a lot of advertising on AVN and i think got hit with a lot of people signing up. There was some server issues right after I created my account. And it's not really active so can't tell you hands-on how it would run.
Search board tracker for 'adult store' or 'video store' or 'sex toys'.
Read some good feedback for both PEcash and xxxpresstoys.
Good luck and post your feedback here. I'll probably sign up with another store or two.