[hicksz]

I was looking at a few Star Trek sites and found one that has pictures of Star Trek Federation ship and non-Federation ship size comparisons. The second link also compares some star trek ships against other sci-fi shows. I don't know how accurate it is but it looks great.

If you are interested:

http://www.st-minutiae.com/academy/e...2A/index.xhtml

http://www.st-minutiae.com/misc/comparison.xhtml