Just bought an ST-9XE and need to sell the ST-7E. Camera is 5 years old and was upgraded to the enhanced chip about 3 years ago. It's in excellent shape and will come with current software (latest SBIG software as well as CCDSoft v5), new hard shell case, cables, etc. as shipped with new cameras. I can throw in an SBIG relay box if you need it.
If you are interested in seeing pictures taken with this camera, I can email you an URL (Astromart won't let me include the URL in the ad).
Asking $1700 and I'll pay shipping and insurance within USA.