realskiers

byronm,

Here's a page entitled "fit to ski" that was prepared several years ago as an aide to get instructors ready for opening day.  http://pmts.org/index.php?option=com_content&view=article&id=44&Itemid=18

You could also check out the exercises in the short paperback "Ski Flex: Flexibility, Fitness, and Conditioning for Better Skiing" which is out of print, but is available used from Amazon for very little or new for $49.

If you're really adventurous, you could emulate Bushwacka's amazing mountain biking off-season exploits.  That guy has built up some serious legs.

Until you finally navigate to that gymn place, think about energy efficient ski technique.  There's plenty of discussion of this on the web.  One source is what racers do.  They have to be very efficient to be able to cope with the physical extremes they encounter.  When scaled down to the level at which most skiers ski, this leads to high quality skiing with lower than normal expenditure of effort