Because your description mentioned a pointed nose it sounds like a shrew,
but you may want to make sure it isn't a vole because they can do extension
damage to roots of trees and these guys can reproduce like mad, in the
hundreds all of a sudden. Here ia a link with an image. (if it doesn't come
through do an image search using google)
http://www.entm.purdue.edu/wildlife/vole%20in%20hand.jpg
Kevin B