Welcome to the diving world!! I second the thought on checking out Suunto Computers. I have used this brand for nearly ten years and have never had a failure. Also, I recommend a weight intergrated BC. They are much more comfortable and you can quickly adjust your weight as needed. I used to use a weight belt for years, but when they came out with the intergrated BC I tried one and was sold. It's all I use now and I love them. My first was a SeaQuest and my current one is a Halcyon. There are many good brands out there, it's just a matter of ones preference. As for anything, you get what you pay for. Don't know what kind of diving you'll be doing, but what ever it is make sure you have the right equipment for the environment you'll be diving in. To get a better feel for what you'll be needing, talk to your LDS and other experienced divers. Again, there are many quality brands out there and a lot of it comes down to personal preference. So take your time and do your homework before you make a purchase. You can always bounce more questions here on the SB and I'm sure you'll get some great advice. There's tons of experience here, so use it to your advantage.
Respectfully,
Fred