SBIG ST4 autoguider. $595.
Includes all original manuals and cables (expect the standard PC serial cable). The only thing wrong with the unit is 2 of the little rubber feet on the bottom of the control box are missing. The stand alone autoguiding function works perfectly as does the imaging function (with a Windows 98 PC). It has been stored in a drawer for over 2 years and I bought it new in 1999. It has the upgraded ROM from SBIG.
I checked this ST4 out today to make sure it works and I will guarantee the unit works. I will refund the purchase price if it does not.
Please note that I was not able to get my Windows XP laptop to communicate with the camera (the software kept crashing) but everything works perfectly on my old Windows 98 desktop. If you are going to use this camera for imaging, or autoguiding using a PC it must be Windows 98 or earlier.
I prefer Paypal. Shipping is $15 UPS ground in the CONUS. Email or call (daytime only MST please) if you have any questions.