If you want to stretch far all you have to do is:
Practice practice practice, as always.
I most certainly didn't have big or flexible hands to begin with, I've stretched them out with alot of practice.
So now I can reach 2nd to 8th fret.
Some people think "what the heck do you need to do that for??".
Well, there isn't alot of songs involving that kind of stretching, but it makes
you pull off the smaller stretches alot easier.
Not that I want to show off, but I have a great stretching exercise in my trick
section that I learned from my teacher a few years ago, The Spider! Check it out:
http://www.guitartricks.com/trick.php?trick_id=7638