I'm getting a little burnt out on Zappa/Vai guitar rock and I'm currently tired of sarcastic and paranoid Oingo Boingo/XTC pop. I've listened to some Reel Big Fish and Mighty Mighty Bosstones clips and it sounds good, but these are relatively well-known and there are probably some obscure-yet-better ska bands out there under my radar.
I'm not really interested in punk-heavy ska as much as the more poppy upbeat kind, and don't recommend Sublime because that's just gay.