bambrose,
I try local used bookstores and eBay first...that way you won't pay too much, but availability is spotty. Heh, with eBay, people will often pay more for a used manual than you can get it new.
After that, I'd try Manchester Honda , good service and good prices. Heh, get the price from your local stealership first for chuckles, then call Manchester Honda, often, your local dealer is charging over list price for parts and accessories...cool. :eh:
You could also try Helm , but I can't personally vouch for them as I've never ordered from them.
Bogatyr