I have a project where I need to create a unique designed online photo gallery that also allows you to purchase the photos.

Can anyone help me with my options here, and if they know of any ecommerce software that would be suitable.

I am experienced in html but not really any other script like php.

Its needs to be easily edited so I can use my own design with is very clean and simple, probably based on something like this site http://www.sparshattgalleries.com/index.php . Most of the ecommerce software I have used is based on a three column grid which I dont want.

any help I would be very grateful