Just a note for those in Boston that I was at the House of Blues in Boston for the first time last night for a DKM show and the place seems pretty good for a show. It looks a lot like the old Avalon, but there are many more sight lines (a second and third floor and more railing space) if you are not on the floor. There is also more room on the sides near the bars (easy access, but a can of Guinness is 8 bucks; Sam Adams was 6.50) and more doors so you don't have to bottleneck at the front to get out. The bathrooms are a lot nicer too for those concerned about such things. Even at a Dropkicks show, which is usually sold out and can be very unruly, there was plenty of elbow room unless you were pressed right up against the stage.
The sound on the vocals could have been a bit more crisp, but I think it is better in the middle than way on the sides. Also, the Pogues won't be quite as loud as DKM, H20, and the godawful Civet, so that should help.
Hope someone finds that useful.