I'd also second a "simple" ball with a symmetrical core. The Doom should be a very good fir for a beginner, anything one could ask for, and the Blue Vibe is also a close alternative, I second chitown. Very versatile pieces, easy to control and with enough room to develop a personal style.
I'd stay away from high end stuff and asymmetrical cores (nodding towards magicmike). To exploit such a ball's potential, you should IMHO have a stable game and a driller who can set ball up for you. Nothing for a beginner. Otherwise, it is wasted money.
After all, it is the bowler who scores, not the ball. Both should match.
--------------------
DizzyFugu - Reporting from Germany
"Put some make-up on your face - Make this world a better place!"
Kahimi Karie, 'Good morning world'