Remember, I would like everyone to have 2 characters, one major and one minor.

I'm going to make up the OOC tomorrow afternoon (GMT). Six players and twelve characters will be enough I think. 

I will be Captain. The other major positions are (with ranks) in no particular order:

[list][*]First Officer - Commander[/*][*]Chief Security Officer (Second Officer) - Lieutenant commander[/*][*]Chief Engineer - Lieutenant[/*][*]Chief Medical Officer - Dr, Commander[/*][*]Chief Science Officer - Lieutenant[/*][*]Senior Flight Controller - Lieutenant Junior Grade[/*][*]Counselor - Dr, Lieutenant[/*][*]Chief Operations (Ops) Officer - Lieutenant Junior Grade[/*][/list]

some of these will be NPCs , but its better if you guys get some freedom of choice in the matter. Oh and if you think there is a position that should be on the list, that isn't, let me know, its late and I'm tired :P
The Captain, First Officer and Second Officer will each be in command for one of the 3 duty shifts.

And as i think I said in the OP, the highest rank your secondary character can have is Ensign, but I hope you are not all going to go for the highest rank you can.