I am starting a small retail business (gift shop) and looking for some good POS software to run on my iMac. I know that there are a few out there, but having trouble finding credible reviews for them (Checkout, MacPOS, POSIM Evo, Lightspeed, PayGo, etc.). Any suggestions or help would be greatly appreciated! I don't want to shell out a bunch of money for the software not to work correctly or has terrible customer service! Please help!!!