Montana - West Yellowstone?

I'm trying to plan a fall fly fishing trip to Montana andi am
overwhelmed with the amount of information i am finding and was
wondering if anyone could point me in the right direction.

The trip is for my brother and i and We aren't really the type who
like to stay in those fancy lodges with the wide screen tv's and fancy
food. We tend to like more fend for yourself type accomadations. I
would like to rent a cabin and hire our own guide each day. I feel
that this is the best way to have a true native fishing experience.
The trip will be for 7-10 days depending on scheduling and we would
like it the middle of september early october.

If anyone can help me out i would appreciate it. Also if you have
other sugestions than the West Yellowstone i would like to hear them.

Thanks

Ray