I thought I might put my home-grown 'accounting' system to rest and give Microsoft's new Small Business Accounting 2006 a try. I'll try to post back here with an opinion when I've had a chance to try it out.
I ordered the free trial CD from Microsoft and installed it tonight. If anyone else tries this, make sure you turn off your firewall software. In my case, ZoneAlarm didn't allow the installation to finish correctly, even though I 'Allow'ed everything it asked about. With ZoneAlarm shut down, the installation went smoothly.