Nobody has more years guiding in La Jolla than Jim Sammons if you decide to go the Guide route. The whole BWE and OEX crew would highly recommend a trip with Jim should you choose to tackle LJ with a little help.
www.kayak4fish.com
Also Josh Pruitt (Darkhorse) is probably the second best known Guide especially for La Jolla. He is quite well known here on BWE.
http://www.inshorekayak.com/
You will be hard pressed to find anybody who has gone out with any of these Experienced guides and not enjoyed themselves and learned a ton. Both of these guys are long time guides, are fully licensed, and are supported by BWE.
Or do what 100's before you have done and just get out and fish. Winter time yellows are a lot of fun, by far my favorite way to catch YT is on the Yoyo jig.