Stephen,
>I have asked in a Quick Books NG and got a private email about Intuit and accepting outside transactions being BAD voodoo.
Probably from a lazy programmer or an accounting-oriented consultant who's not much of a programmer.
Import of data to QuickBooks is not a problem -- it's just a little complex. They have their own format, of course, and you just have to write a routine to create some tab-delimited files in their format. I've done GL entries, but the info is available also for PR, AP, and AR.
You can find all of the specs on the QuickBooks support pages on the web.
If you need to contract it out, private me.