I finally decided on what variations I'm going to use. Nacelles back, smoothed transition delta, and the up and middle versions of nacelles. I've actually started putting details on now. It's a science vessel, that's why it has that sensor laden fin and underside.
http://i11.photobucket.com/albums/a1...s_Rev00001.png
http://i11.photobucket.com/albums/a1...s_Rev00002.png
http://i11.photobucket.com/albums/a1...s_Rev00003.png
On a more personal note, I was at a meeting with the Commissioners of my county, and there was a picture of a ship on the wall. I looked at it and saw it was the USS Cambria. A famous World War II attack transport was named after my county, and I didn't even know it! I'm actually taking a bit of pride in that fact.
http://en.wikipedia.org/wiki/USS_Cambria_(APA-36)