well, i live in the Central USA, which is very cold right now =P and there are still spiders in the house! i don't know if they're poisonous or not. some of them are red, black, gray, and white. but all of them are small, not so big. I found this electronic pest repeller site, and they sell some of their products, which looks interesting, i don't know if i could trust them or not:
http://www.electronicpestrepeller.com/Index.htm
what you guys think ?