One stud's diameter is 4.8mm. This is based of http://www.ldraw.org/Article218.html
Dimensions of a 1X1X1 brick:
Height: 9.6mm
Plate height: 3.2mm
width: 8mm
Still searching for more information
heres more stuff on technic
http://nicjasno.com/forum/viewtopic.php?t=653
I have 8 thank you including sandman. Have a good time at camp. maybe when you come back ill have more I know Spyder. He will be a good leader while you're gone
If you do not really want the set, I would suggest Bricklink. If you want the sets, then buy them. I would get Home One, but not the pirate tank. Its not very memorable.
After looking over my copy of Essential Guide to Vehicles and Vessels, I found the best (looking to have as a model) ship: the Z-95 Headhunter.
Grey and dark red
close up on the driver:
and the engine:
Hope you enjoyed my take on this ship