[Leica] Wide angle lens

[David Degner <ddegner@morris.com>]

This year at school I was granted the right to carry my camera around with 
me an document the normal teenagers life.  My excuse is that I am the 
yearbook photographer (which also means they pay for film and developing :) 
).  My only lens for my leica right now is a ASPH 50mm summicron .  I have 
my Canon rebel for the telephoto and zoom stuff, but because of the tight 
quarters I would like to get a super wide angle lens for my M3.  I have 
been hearing a lot about the wide angle heliar's .  Price is a major factor 
and the heliars are relatively cheap, but what are my other options?  Do I 
need an adapter If I want to use a heliar?

Thanks for your constant pool of knowledge,
David Degner