As a complete newbie I can't give any opinions to you experts, but I'll tell you that when I went looking for my 1st bow I knew I wanted a single cam because experiance with other mechanical devices has taught me that less moving parts = less stuff to break.
Archery is suprisingly in depth with lots of things to learn, the last thing I need is to have to calibrate 2 cams to work together.

"guns aren't for killing people, guns are for killing dangerous and delicious animals"
- Homer Simpson