Pitt,
I am part owner of a company in St. Louis Park w/my brothers. My bro actually lives in Lakeville.
First, there is a definate line to not cross in efficiency on AC units up here. No payback unless you run AC 24/7 March to Nov.
There are some good combo's out there for systems, it all depends on how much comfort is worth to you.
As far as equipment, The company putting it in and warranting the parts and labor is more important than the badge on the machine.
We carry the Bryant and York(Johnson Controls) units because we have a great relationship with the local distributors. They help when there is a "problem the factory has never heard of before" I've been doing this since 1988 and self employed since 1998 with the brothers. Our motto is "Quality is our middle name". A small family owned shop with small town service in the big city. We try!!
Let me know if we can help, email
brad@aqscomfort.com or cell # 612-282-2352 Call me if you have some questions, I'm not in front of the 'puter all day, out on the jobs.
talk to ya, Brad