I'm in Oakland and climb at Ironworks occasionally.
Here are your choices:
California Strength is in San Ramon, so pretty close to Berkeley. Give Glenn Pendlay an e-mail.
Great Western Power Company (the sister gym to Ironworks with reciprocal membership) has actual platforms -- just find out when the CF classes aren't)
CF Oakland has an OL team, but I think you have to be a member
Lots of stuff a bit farther away
If you want to concentrate on OL, Glenn or Greg are your best bets.