Sean & Mark, Way to go...you guys will not be disappointed with this airplane!
Sean, I use a combination of glues for my models. I use thin CA basically just for tacking purposes. Med. CA for most joining of ribs, formers, etc. Areas such as gear mounting plates motor boxes and the like I like to use a nice slow epoxy so that it has time to soak into the wood and gives a bond that I know that I can trust in those areas...I know most folks tell me that med. or thick CA is just as good, but maybe I'm just a bit old fashioned when it comes to some things...logical, probably not but hey, that's me.
Titebond will work too, but I think it would slow down the build process quite a bit...and you'd better have a massive quantity of T pins handy!
As for balsa sources, well I usually use Lone Star Balsa, never had any problems with them so haven't really looked elsewhere. They're prices are good and their service is very good as well.
Rob / Pickupsticks