Oh a follow up on the traps.. look at it this way - its natural selection. If they are stupid enough to go for the bait on an obvious trap then oh well.... SNAP! - you be dead.
The glue ones are a pain because sometime they will get stuck halfway or not on real well or they will chew off a leg etc and then smear really nasty glue all over under your cabinet or whatever.
Oh and I did try the humane catch and release traps for a while and then I'd dump them a mile away in the forest. Then I found a couple dead in the trap the next day (heart attack I guess) so that wasn't working too well...
But really the clincher was after they got into a lot of storage containers (the plastic ones with the double fold tops) which I thought were mouse proof. No such luck they pissed all over everything and ruind a lot of photos/keepsakes/important papers. At that point I switched to lethal traps of every kind.
best bet - knock down the population with poison (careful if you have cats/pets however) and then follow up with snap traps for a while...
-G