Try:
MIGHTY MIGHTY BOSSTONES
ALPHA BOY BAND
FISHBONE (late 80's/early 90's)
BABY HEAD (new U.K band)
www.myspace.com/babyhead
SKANKT
www.myspace.com/skankt
For reggae tinged ska:BEDOUIN SOUNDCLASH
For punk tinged ska: CAPDOWN (First two albums)
SKANKT WW