Weights are 170/175 summer/winter, but that's due to increase in August I hear. Standard bags weigh 30 lbs, "heavy bags" 50 lbs. Sounds like the Q200 is gonna be about a 34 seat airplane on many routes once the weights go up, although they may do a recertification to up the ZFW.
Each captain is issued a Jornada (these days it's mostly iPaq's actually). Oh yeah, the W&B is done by the captain at QX.