[RyanW]

As others have said, only keep track of the stuff that's going to matter to the PCs. A sample might look like:

2 Guards
ST 11, DX 11, IQ 10, HT 11
Broadsword [12] (1d Imp/1d+2 Cut)
Parry 9, Dodge 8
Leather armor (DR 2, Torso) and Pot Helm (DR 4, Skull)
Each carries 2d $ and one (#1) carries orders from the Duke
There is a 1-in-6 chance that one of them is away from the post when the PCs arrive, but he will return within 1d*10 seconds if the alarm is sounded.