Thanks all for the advice. I know my timing is horrible for avoiding the crowds, but I'll have to take what I can get. Burke looks interesting, but I think it and Jay Peak may be a bit too far out of the way for convenience. I've never been to Haystack, but it looks as though is turning into a ski-country-club. Pico is a possibility, but it sounds like an Okemo/Stratton combo could be the ticket. I'll just have to get to the mountain at 5 a.m. ;-)
Funny, but I never knew that Mad River Glen was skier only (I thought the last hold-outs were Taos and Alta). I've haven't touched my skis for 16 years, I wonder where they are...