A little over a year ago I mentioned PayLoadz. PayLoadz and E-Junkie both allow you to sell downloads. You can easily have a shopping cart or “Buy Now” button. This is great for selling your own MP3s, Pictures, Software, E-Books, etc…
I just recently signed up for E-Junkie. It seems like there are more options than PayLoadz. E-Junkie also allows Google Checkout instead of just PayPal. (Google might give preference to Google Checkout pages)
E-Junkie was just implemented on a trial site of mine. However, I found this Promo Code.
USE PROMOCODE: CRAFTBOOM
This promotion code gives you 52 days of free item selling. Normally E-Junkie costs about $5 a month.