Please post in Community or PM when y'all are having the "Chocolate at the Pen" Do in Chicago!!! If I can find a reasonable airfare to ORD, I'll come for that!

I second the recommendations of:

MarieBelle on Broome St. in NYC, which I simply stumbled on while wandering about. You can get a free sample of thick, delicious hot chocolate in the tasting room at MarieBelle. I purchased the mix based on the tasting. Be sure to read the labels carefully when you buy. Some of the hot chocolate mixes contain hot peppers, which is an interesting addition (and historically, I believe the Aztecs mixed hot peppers in their chocolate brew), but may not be for everyone. Of course, they also have a website: http://mariebelle.com/index2.html

Valrhona chocolates. These can be found sometimes at Trader Joe's, but I've mainly purchased on the web at www.chocolatesource.com . Go there through the shopping portal at www.ebates.com , and you will get a 7% rebate; or you can access it through www.goldpoints.com if you're into that. I wouldn't be surprised to find it on other miles/points-earning portals as well.