Chaosbuzz,
Since you haven't been diving for a year my recommendation would be to start off with a refresher/ guided dive at either La Jolla Cove or La Jolla Shores. IB Divers La Jolla and Ocean Enterprises are two good shops that can provide you with a guide and rental gear. Another convenient option would be to go with Al's diving/ Diving for Less. Al is an independent instructor. He'll meet you at the dive site with any rental gear you need.
After you get your refresher dive done definitely come out diving with Power Scuba. There are currently dives scheduled for Aug 14, 15, 17, 18, 19 and 22. The Aug 18 Cove dive and BBQ should be especially fun. The weekday dives are scheduled at 6pm but since the sun is setting around 7:30pm they're not night dives.
Conditions were fantastic this weekend so hopefully you'll be able to get in the water for some good dives.