I see you are in California -- do you intend to do any local diving? If so, there are a couple of considerations. The BC you have chosen is positively buoyant, so you will have to carry weight to sink it. If you're anything like me, the total weight of dive gear is one of the only big negatives to diving. I will do almost anything that will cut a few pounds off what I have to carry! This is one of the reasons I dive a backplate system, because there is no intrinsic buoyancy to it (no padding) AND by putting the 5 pounds of the backplate up on my back, I cut down the amount of weight I have to wear on a belt.
The regulator is perfect, a very good choice. Solid, middle-of-the-line regulator that will do anything you will ever want to do in recreational diving. Widely available, so service or parts should be easy to come by, no matter where you go.
I personally dislike split fins. (This is an argument that RAGES on SB, but I will give you my own personal reasons, and hope it doesn't start a firestorm.) For one thing, they don't "bite" the water, so you can't use them very well as horizontal stabilizers, to prevent rolling along your longitdinal axis. "Turtling" is one of the problems novice divers have, and splits don't help. The second reason is that they are difficult to use for precise positioning kicks, and you WILL want these if you move along to something like underwater photography. There are a LOT of paddle fin models out there, some heavy (good for cold water, heavy wetsuits or dry suits) and some lighter (better for tropical diving). I'd highly recommend looking around at what's available, and whatever you buy, make sure it comes with some kind of bungie or spring strap -- they beat traditional straps all hollow!