Welcome to ScubaBoard. You are definately on the right track and the fact that you have most of your gear means that most of the up front expense is behind you! As a double benefit, starting in Hollywood and heading north there is some very good beach diving in the area -- so you won't have to break the bank everytime you want to get wet. Blue Heron Bridge is a particular favorite.. the sea life is incredible for how easy it is to reach and the potential for great macro photo shot is awesome!!!
As a far a find a place to get trained and a group of local divers to hang out with, go to a couple shops and dive clubs to see where you feel most comfortable. There are several excellent operations to choose from as well as some very good independent instructors... Each has its own set of plusses and minuses so it is not a situation where there is only one right choice. Just make sure you find the right choice for you. While we of course would love to work with you and invite to come by for a visit anytime, there is a reason there are so many flavors of ice cream at 31 flavors... everyone's idea of what works for them is a little bit different!
Enjoy the adventure of diving!
P.S. ScubaBoard is a great resource with many dedicated contributers. In addition to public posts, don't hesitate to send private messages to anyone that you think might be able to help you with a specific question... That is what most of us are here for!