About the generic satellite: Yes, it´s based on two hexbases I still had lying around (from Full Thrust, I think) - I found out that you can do all kinds of wonderful things by glueing together two bases (have you ever needed a base for a statue?). It gave me a good ground to work on with modelling putty (I usually do freehand-sculpts of Fantasy terrain, coverting miniatures and such - not professionaly, but with gusto).
Now, the Drazi satellite... I don´t know about the "space crap" thing, but I must admit that it looks a little to much like a brick wall (fantasy scenery again...) - I might give it a workover someday (although I´m pretty satisfied with the overall design).
The Vree turret I want to do will have a flat gun array sandwiched between two discs - Imagine the turret guns from the old Galactica between two small flying bases, or something like that. I´m still looking for the right bits and pieces though (it´s SO important to have proper pieces!). However, I´ll first make the EA satellite (I already have a nice body for it; I´m still not sure how to design the missile launchers and the solar fins) - I´ll keep you updated.