There's Sage 50 (formerly Peachtree) and Xero, but both of them want you to keep all your financials on a remote server out of your control, run it in your browser, and have things set up to bleed you financially for as long as you use it due to the same SaaS (Software as a Service) model that Intuit is using now with QuickBooks, and most of the accounting software for SMBs such as the ones mentioned are now pushing into full-on ERP (Enterprise Resource Planning) suites.
If you want something cheap/free/system local, you either need to dig up an older copy of QuickBooks and pray it never breaks under any of the future annual OSX updates that you'll need to do to keep the system patched, look into Moneydance, or knuckle down with GnuCash.
If you'd rather lean towards one of the larger server suite ERP solutions that the big guns are slowly moving towards incorporating, there's always Odoo(OpenERP) or Openbravo which are both open source platforms. Both charge for managed servers doing a similar SaaS setup and price model as the competition, but offer the software for free if you're willing to manage your own rack and install. Of course, the other advantage of going open source with your ERP platform is not having a complete data lock-in to the software platform you're using like Intuit, Sage and Xero do.
Beyond that, it would be wise to consult with your CPA, especially if they're doing any bookkeeping and taxes for you. Whatever you use, be sure you can export any data they need in a format they can use.
