[tedrodgerscpa]

"Cheap" and "consistent" are mutually exclusive. You can either have cheap OR consistent.

With that said, given that you are doing either press or drip, a cuisinart or other general appliance manufacturer would make a machine that is adequate. Find a good price on any burr grinder, given those parameters. The moment you want to get more fancy, you'll need to throw $150~$200 at it for starters.