I finally tried it and I am thrilled with the results. I put a bunch of Basil, Thyme, and Lavender in a pot. Here's how it looked on 2009-05-30:
I gave watered it, cut back the Thyme when it got out of control and threatened to shade the others, and this is how it looked on Sunday, a month and a half later:
I am thrilled with the result. I've never gotten gotten Lavender to flower quite like this. And I'm amazed at how soft and downy the Thyme plants feel. The Basil is thriving, too.
The GF tells me that it kind of went a little crazy this week so I may be doing some pruning/harvesting this weekend when I get home. It's pesto time!
I'll definitely be doing more of this type of planting next year.