I was using Zenfolio and loved it. I just bought a new template for my website that includes a shopping cart and place for proffing galleries. Zenfolio is very inexpensive... you can get a basic account for only $25 a year. I was using the next level which is $40 per year for unlimited storage, but if you aren't that busy the basic would probably be more than enough for you. Not sure if I'm allowed to put the link for it, but here is the site.
www.zenfolio.com