I upgraded to the D3100 with Live View, so that I could use it (with the appropriate adapter) on my Sinar. Do the prelim work with the digital back, then switch to film when I have the shot I'm looking for!
Asking $275 + S/H. Very little use; I got it last summer, but didn't get out much during the colder months. I'll try to determine shutter activation count, and will post that shortly. I'm confident it's less than 1000.