I'm looking for a good electronic pocket dictionary

I’m spending the year in Austria, and I’m finding that I have to look up an awful lot of words in my dictionary. This presents two problems:

1.) Looking up words in dictionaries takes time and is boring.
2.) The only dictionary I took with me is a smallish one that hasn’t got nearly as many words as I’d like.

I checked around on the internet and found some little electronic poclet translators that look really good, but I have no idea how good they really are because no one has really reviewed them (that I’ve seen).

What I’m mainly looking for is something with a huge vocabulary that’s easy to use. Something inexpensive would be nice as well. Anyone out there actually use these things?