Hey Kforbs, this is what I use.
http://www.homedepot.com/webapp/cata...ve+animal+trap
I bait the trap with peanut butter, which they can't resist. They like it far better than tomatoes. I have caught 8 rats and a baby O'Possum so far. I can't kill them so don't tell anyone but I drive them about 5 miles away and release them in a large forested acreage area.
I use the double door trap, which is under$20.00. Set to just barely touching so it is easy to trigger.
BTW- they seem to hunt in pairs so I can usually catch 2 in 2 days, then nothing for awhile until the next one comes around.
Marsha