Two of my favorites:
1. I love this one because it was my first real attempt with just a lens (40D + 70-200). Had no idea what to expect and was pleasantly surprised. I'd never captured this amount of detail before:
Andromeda Galaxy by FuzzSummit, on Flickr
2. I'd always wanted to do a widefield of Orion and got the chance to try it with my 28-300mm:
Orion Molecular Cloud Complex wide-field by FuzzSummit, on Flickr
Sweet Jesus those are some nice images. They would be hanging all over my house!