Much as I love all those braises, it's SUMMER!!! :smoking:
So maybe something on the same order but more attuned to hot weather (well, I see from Weather.com that it's not so bad where you are, but still. ;) ), like a boeuf à la mode, a nice jellied beef. Or maybe jambon persillade, a ham-parsley terrine. In any case, I'm thinking something that doesn't have to served hot and is light on the palate.
Ratatouille would also be great, since it can be served at room temperature, and the main vegetables for it are in season now -- eggplant, zucchini, tomatoes, peppers. (I'm a big fan of bringing vegetable dishes to potlucks, since they're something pretty much everyone can eat.) Just don't do what my mother did once: when she had just discovered the joys of fresh ginger, she added large lumps of it to her (Julia Child-learned) ratatouille. :eek: Not a pleasant surprise to bite into! :lol:
ETA: Nicko, how can you not have that book????? Publishers Weekly says that it's been outselling Julie and Julia (much cheaper -- in so many ways :p), so get with it! Besides, some of those recipes are absolutely classic, and not even all that hard, like the Chocolate Mousse.