Harem Scarem aren't a Bay Area thrash band.
They play melodic hard rock/AOR type stuff. I think they started in the hard rock vein of bands like Danger Danger, Winger, etc.. but progressed to a more modern melodic rock/AOR sound.
They're still going now and have the following albums:
Harem Scarem - 1991
Mood Swings - 1993
Voice Of Reason - 1995
Live In Japan - 1995
Believe - 1997
Karma Cleansing - 1997
Live At The Siren - 1998
Big Bang Theory - 1998
Rubber - 2000
Last Live - 2000
Weight Of The World - 2002