Derk, I've used QuickBooks for about 3 years and am satisfied with it. It's simple to set up, does all my invoicing, I can track all expenses as they pertain to specific jobs so there some room for to compare profit margins. It comes in all formats. It's produced by the same people that make Quicken. All the basics of business operations are integrated into one package. I have a 486 DX2 66 and it runs fine. Brian Tassey Alta Apiaries [log in to unmask]