QuickBooks is a good accounting package for a small business. At the end of the year when you have to get all of your records together to file a tax return you may appreciate the little bit of extra detail afforded by QuickBooks.
Another program you might want to consider is the Sage Peachtree First Accounting 2011 package, which is less expensive than QuickBooks while still affording good coverage for the basics in accounting.
For an excellent pricing on QuickBooks and Sage Peachtree First Accounting take a look at this resource: Trinity
For a look at open source alternatives you might want to look at this resource: Osalt