I am actually opening in about 6 weeks

Very excited but the POS is a concern. We want to use our own equipment (CPU) and add on the much needed pieces (register, screen, printer) and dont want to be stuck with a system we will not be able to use with something else. We will have take-out, delivery, and pick up (no dine in). And would like the POS to work with quicken, possiably a map software (MS Maps or Trips 2005). Needs to be something simple to use, easy to take orders, and also have a great back office. I need reports, invintory, time cards, clock in and out, and able to store database in MS Squl format. I would also like it to have a good service plan (tech support). Any suggestions out there?? What do you all use.