love life bags
if Timbuk2 has gone too mainstream for ya... then lovelifebags may be for you
ya never hear anything about ZO BAGS anymore...
in my misspent youth... the Zo bag was "da shit"
had a Zo and a De Martini
(although I was frustrated at the time that City Bikes had a virual monopoly of the De Martini bags and did not sell any of these bags without their logo screened on the exterior)
and
from a Messenger Site... a list of Messenger Bags
personally... I think that the standard backpack style is better for your body and better for riding a bike

and of course
The Old Bag Blog