Whether your guild is on the cusp of getting their first bear or you're in the queue to get your turn (or even if you're looking to buy a bear from a raid group), time is short. Remember that Zul'Aman is only on a 3 day lockout, not 7 like most raids. Most groups only run the place once a week regardless, but you may want to consider rallying your raid to push for twice a week until patch 3.0.2 hits. You may only have 8 or 9 raid resets left before you're out of luck. I very strongly recommend WoW Insider's Zul'Aman Bear Run guide from our Jennie Lees if you just need to shave off those last few minutes.
Good luck, ladies and gentlemen. I hope to see many bear mounts in your future.