remove your prices as they are not allowed. See site rules.
go with the highest SEER you can afford.
Make sure its installed properly by a reputable contractor. Get the 10 yr extended warranty to cover parts and labor. Get the semi-annual service agreement. And enjoy.
The lowest SEER system installed properly will outlast and outperform the highest SEER system installed improperly.
Installation is key. Not brand, SEER, or price. If you expect the best, you gotta expect to pay the most. Thats just how it works.
I fully support the military and the War on Terrorism.
If you don't know, then don't do. If you don't know and still do, then be prepared to pay someone else a lot to undo what you did and then do it right.
If you do know, then do. But do it right. Otherwise, you may not be doing it long.