For crying out loud, just use humane live traps and take them to a field! Okay, I'm biased, I'm a vegetarian. But I don't understand the need people have to kill critters who can easily just be relocated. I don't mean to offend anyone, that's just how I feel.
I will confess that I have never had to deal with mice...I have three cats (all indoors), and rodents stay far away. My youngest cat likes to go after crickets, spiders, and cockroaches, since there's no bigger prey to be had. One cat we had when I was in high school proudly brought his catch up to the porch one day...and it turned out to be a dandelion. We called him "the mighty dandelion hunter." This same cat used to sit so long by mole holes that he would fall asleep waiting!
Peace, Dawn
Me 45/H 47, no kids Together since 1985; M/1992 Bomb1 (EA-OW1, age 22) 2001 Bomb2 (EA/PA-OW2, age 22) 10/2007, A continues H left 11/24/08 minimal contact, no legal action http://tinyurl.com/DawnHope1
One cat we had when I was in high school proudly brought his catch up to the porch one day...and it turned out to be a dandelion. We called him "the mighty dandelion hunter." 
This same cat used to sit so long by mole holes that he would fall asleep waiting!
