You never read the technical manual for the Enterprise-D, have you? That book has everything covered, from simple things like fuel tankage and personal living space, to how the freakin warp drives, artificial gravity, and Impulse engines, and what-have-you works. It even has interesting and sometimes hilarious notes inserted by the production staff and other nice little tidbits of Star Trek history (Like when and how photon torps were invented). Go find a copy if yoyu don't beleive me.

Note: There was also a similar book done for the original NCC-1701 with goodies like alternate ship classes (Did you know there was a federation Dreadnaught class back then?) and stuff that will clue you in on making your own props and costumes too! If you can find that one as well, then you have my respect.

-NeoRaven

Sorry, just defending my Trek-hood. =p