I don't think you could have picked a worst place to go in MT. Unless you enjoy being around homeless, hippies, and Liberals. The fishing is pretty much as has already been stated. I am gathering you are looking for the city life first, fishing second.

I think Bozeman would be a much better choice in all regards. If you decided to change it up the Western Cafe, The Oasis, and Dave's Sushi of Main are all great. There are a bunch of very good restaurants in Bozeman or within a reasonable drive. You are close to a bunch of great rivers to fish, and it isn't called Bozangeles for nothing! So plenty of shopping to be had too.

Eat Fish, Wear Grundens, Drink Alaskan.