The reason I have it narrowed down to these two is fairly simple. I want an open source cart. Not only is it much cheaper but they are much more customizable. I know they can sometimes be buggy simply due to the open source nature of things but I am starting small so I don't really see it being a problem.
I have researched these two quite a bit and just from the specs I am leaning a bit more towards Magento. However, I was hoping to get some feedback from those of you who have actually used one or both of these. Just to give you a better idea of what it will be used for I am looking at starting with 8 standard products. There will be only two options; color and size. I haven't decided on a payment gateway yet but I will most likely go with Authorize.net, Quickbooks, or maybe even PayPal. If you guys have any experience with these carts I would really appreciate some comments about them. Any input would be appreciated.