Okay.. I have been wanting to purchase the shopping cart software for awhile and have been doing a little research and havent found any real solid answers to implementing a coffee cup shopping cart into existing Expressions site. Is it a big problem or is it pretty easy.. Any info regarding success or not would be appreciated.

We would probably need more information. I use both Coffee Cup software and Expressions in my web development business. They are two different entities. The only real comparison would be Expression and CC's HTML editor.

Regarding the nature of your question:

Yes, you can integrate the shopping cart into any existing website. However, you will need to know some of the code in order to make the transition from your cart to your website seamless. If you don't care too much about that, then you should have no problems. It's not necessarily easy, but what you are wanting to do, would not be easy with any software you purchased.

Also remember there is a robust online community to assist you throughout the process if you need it.