Well, in response to the comments about the warp nacelle - I've decided to give it a complete rebuild as I probably will for the rest of the ship. I always thought it looked a little too 'blocky' compared to the real ones. Also, the original nacelle was modelled with referance to the Miranda's engines; which, surprisingly, are different to the Constitution's (only in some small details, but enough to make a difference).
In answer to some questions that have been raised:
are you ever going to retexture the kessok mine??
I was not thinking too much on rebuilding / retexturing the Kessok Mine or Sunbuster - mainly because they aren't used very much.
is there any chance that it would get a TNG era hardpoint
I wansn't considering that, to be honest. However, I do have something... alternate planned for the Akula.
The way that worked for me the best (in really basic terms) is to use a chamfer box for the front, and a cylinder for the aft section, and boolean'em together.
That's sort of what I've done. The nacelle is made up of several distinct shapes. A trapezoidal prism for the thinner body and an ovoid cylinder with engraved sides. (not the best explaination) Either way, these are REALLY difficult to get right. :mad