Quickbooks is designed for business applications, i.e. chart of accounts, invoices, statements, detailed business reports/graphs, etc. Quicken is more aimed at personal finances but you can get a small business version of it as well. I tried it and didn’t care for it for my business but it’s great for personal accounts. If I remember correctly it was cumbersome to be able to assign expenses to various categories and to track and report on them. That ability makes it so much easier come tax time to simply print the appropriate report, P&L, Balance Sheet, etc to use to input to your tax software of send to your accountant. It also allows you to see real time, each month where your expenses are going, i.e. copying, marketing, tools, beer, munchies, etc, etc. I think Quickbooks Pro was around $170 or so…well worth it and you might be able to find it cheaper. Quicken runs $40-$80 I think.