many answers. I will say right up front, DO NOT USE BEHR!!!!!
I would suggest that you consider either Sherwin William's, Kelly Moore, or Benjamin Moore. Any paint from a home center is not of quality. Paint from a paint dealer or paint store is what you want. Expect to pay about $23 a gallon.
I am a professional painter and I only use those three brands, if someone wants a paint like Behr of from a home center, I will pass completely on the job.