I am selling products that can be personalized with name or color. can i add a comment box or a quote feature per product?

No not directly. you could use the form builder to add a small form to your shop for users to submit the need data.

ok. if i add a box on the buy page is there a way to populate the list in the form with products from the shop without having to type each one?

No it can't do that as the form will not really be connected to anything with the shop it will just be code put into a page so you'll need to either use some type of php or something to get it to do this or just create a generic form (that would be the easier solution).
Basic product information is in the page as usual and at the end of your product description is where you put:

ITEM NUMBER: XXXXXXXX (insert your item number here. Put the number in BOLD so the customer can see and recognize it easily and then they can just copy and paste it to the form below easily)

FORM STARTS HERE
Item Number [text box for the customer to enter the item number above the form]

Name:
Email:
Include in your form anything you want to gather from the customer such as Name, email, etc. Be sure to get at least an email address so you can match up the form sent to order sent.

Also be sure to make the fields required that you "need" and be sure to add captcha and email verification so that you don't get a lot of spammers as you'll want to include this generic form on every product.

Hope that helps

That's a pretty round about way to do this! I like the cart except for the fact you cannot add a text box for customers to easily add customization info.

I guess your cart won't work for me.