Ask Slashdot: How to run a (small) business with Open Source Software?

ahree writes: I'm starting up a restaurant with my wife and a few friends and, well, I'd like to support the OS community and hope that this is a way to do it. Simply put, we need to take care of bookkeeping, accounting & payroll and I'd rather not use QuickBooks. I've heard of some options that are open source (GnuCash), some that are cheaper & simpler (WaveAccounting), but I'm wondering what your experience with them (and others) has been like.