I'm a beginning surfer, and I want a longboard.
How do I select one? How much should I pay?
What is good width and length, etc.?
If you have never surfed before, avoid going for a really long one - they are very unweildy, can be difficult to get up to speed, and are a pain to carry back to the car when you are tired out :-)
As far as width goes - can you sit up comfortably on it? And can you fit it under your arm?
Islesurfboards in California have this chart, which is a pretty good starting point:
Their website also gives a lot of info on all aspects of surfing.