ARe you looking for somewhere you can physically go to or just someplace nearby so shipping isn't expensive?
American Restaurant Supply and Warehouse is in Minneapolis (I'm not sure if they have an online store at all though...)
However, most online restaurant supply stores will drop-ship anywhere, FSW has really good stuff (and a lot of it...although it may me slightly more expensive): Check them out:
FSW Restaurant Supply
and Restaurant Equipment
Or you can always just run a quick search in Google for whatever you are specifically looking for. Are you looking to start a restaurant from scratch or just get some new supplies?