I'm visiting from Philadelphia for a conference with some university colleagues (including my dean!). We'd like to find a nice place for a party of four on a Monday or Tuesday night: we need entrees around $20. Up-to-date (or even trendy) would be good, but not too much of a "scene." Looking at some web sites, I've come up with places like Baraka, Frascati, and Bistro LaMoon. What do you S.F. hounds think of these, and are there others you'd suggest?