Unless you're almost exclusively a defensive dman the extra reach you get is really not worth the negatives that an overly long stick brings, namely worse stick handling, worse shooting, more trouble receiving passes, etc. If you look at the NHL, or really any high level hockey, players in general use much shorter sticks than your average rec player does. You should be able to stickhandle with both hands in front of your body, like Fedorov or Sakic:
Not with your top hand trapped on one side of your body, like you see with so many low level players. Basically your stick should be roughly at the height of your collar bone when you're on skates. This will take some getting used to if you're coming from sticks that are above your chin on skates, and your shot especially will suffer at first, but once you're used to the shorter stick you'll find it significantly improves your stick handling, shooting and passing. Here's a good article on stick length:
http://www.cuthockeysticks.com/
This article is written by Howie Meeker, an old school NHL player, coach and GM. It's old school advice, but it still applies today. Keep your eye on stick length during NHL games, and often during national anthems, or when players are standing beside the bench at timeouts, etc. they will hold their sticks vertically in front of them, with the tip of the blade on the ice, and unless you're looking at someone like Willie Mitchell you'll probably notice that the stick comes up only to about shoulder height, not to somewhere between the chin and nose like most low level players use.