I've had the 60D waiting since Xmas to get a chance to try as an astrocamera and I finally managed to get my act together last night before the moon came up. Only a total of 45min so not much to really go buy but it does look promising.
Crux with 60D & 135mm: ISO400, 15x3min. Flats and Darks and stacked in DSS. A quick follow up processing in PS. Because of the short total exposure I haven't tried to do too much with this shot, but I'm happy with the initial results. And that I've finally used the 60d for AP
The second image is a crop from around Mimosa @ 300%