Here's a copy of a post I added in response to li10up's query re off-season training:

Page 16 of this Hammer Nutrition newsletter has an article entitled, "Off-Season Exercise: Aerobic or Anaerobic?" and on page 21, "Building Your Base."
http://www.hammernutrition.com/downl.../ENissue57.pdf

Hope these help!

The archives have loads of information regarding training. I highly suggest purusing them as you have time.