I wouldn't recommend a "beginning d.c." Learn what you need and buy your d.c. based on that. I started with a Suunto Cobra and still use it.
Why did I start that way? I needed an SPG/Depth gauge at any rate. The Cobra filled these functions and added a fully functioning d.c. I knew that I was going to be getting into diving in a big way, so it made sense.
I know of divers who use a small SPG and a Mosquito. That has been a good combo as well. And the Mosquito doesn't cost that much more than a good dive watch. BTW, the way the Mosquito is my back-up for Caribbean diving because I am always wearing it as a watch so it is with me and I don't have to worry about forgetting it back at the hotel room.
But to echo another couple of pieces of advice, get your basic equipment first, buy your dive watch/computer/ (insert other kinds of timing device) later. Also, whatever you do, don't waste your money on a non-nitrox compatible computer! You may be diving nitrox sooner than you think and the price difference isn't worth it.