Welcome to MT! There are quite a few nurseries in the Bozeman area as well as Big Timber (east of Bozeman). The Montana Extension web site should provide quite a list of publications available. Moving from the East coast to MT, gardening-wise, will provide you with some very different challenges- dry conditions, wind, alkaline soil, to mention a few. Good luck!

Hey there Marcopolo,
Not in Bozeman but have quite a bit of family there.Montana has a fairly wide range of different climates.I have cruised a few of the nurseries you will find them a bit smaller then what you may be used to.When I used to go out to Maryland I was amazed at the size of the various nurseries compared to ours.I would also ask the teachers at the school about their favorite spots to check out.Also ask questions in the other forums that are of interest to you here , there seem to be a few other Montana gardeners who do not come into this forum but hang in their favorite forums.You never know when one of them may answer you.
Not to many other suggestions from this gal.Since I tend to like to hang out by the lake.