Hideho everyone. For those of you wondering what the Fat Free Cart looks like in actual use, you might want to check out my purchase page at
http://www.bingocardcreator.com/purchasing.htm
In particular, note how I have the cart linked all over the place using Paypal's buttons which include credit card logos. I strongly recommend that you also include credit card logos, as this results in a 50% higher conversion rate in my tests. Easy money for including a simple img tag! Many customers, particularly those that are less than technically inclined, do not automatically associate Google or Paypal with "Oh, this is where I go to pay by credit card".
I've been consistently impressed with the quality and customer service offered by e-junkie, and recommend them incessantly. If you're fence-sitting, try them out, you won't be sad you did. The ONE single thing I wish could be done slightly better is the Fat Free cart for shipping items requires entering the zip code in the cart, which is a very expensive gotcha for me in terms of decreased conversion to the CD I sell. I'd love if that field could be done away with somehow which remained compatible with capturing the customer address.