I'm about to start managing the finances on a startup I'm founding with a partner, and in order to keep the books in order, we'll be using QuickBooks. It's possible that Outright or Less could handle our needs, but I want to make sure that everything is recorded properly, including paychecks and whatnot. This is important when running a solo operation, of course, but since the income is all pass-through, it's not as big a deal. When there are multiple founders, I'd recommend something more substantial.
But right now, I'm a big fan of what's going on over at Less Accounting. I think he's on the right track to the perfect small business solution. And the support level is unreal.
I will however check out Less Accounting.