While Bobtail has some interesting flavor names, I think their ice creams severely lack flavor. I've never had a flavor there that I'd go back for.
I've been favorably impressed by the Capannari in Mt. Prospect., which you might enjoy, emdub. One of the things I like most about them is the wide variety of mint flavors (there were at least four different types on my last visit). Their ice cream is quite flavorful and has an excellent texture.
They have flavors like "Chocolate Chili", "Lavender Honey", "Irish Coffee", "Coconut Curry", "Limoncello Sorbet", etc. Which might appeal to you if you like the gourmet stuff at Humphry Slocome, but they also have plenty of classic fruit and nut flavors. Call ahead if there's a specific flavor you're interested in.
They're a small-batch, family-owned operation in a historic building. Worth a visit.
Best,
Michael
Capannari Ice Cream
10 S. Pine
Mt. Prospect, IL 60056
847-392-2277
http://www.capannaris.com/