Hi Eric:
Try
www.3Riversarchery.com they have been around for a while and have a good rep. Their prices are reasonable and they have ready made arrows and all the fixings for you to make your own.
There are several articles on the web for making your own. Basically the parts you'll need are wood dowels (Port Cedar is a good wood to start with, practical for this purpose and not too expensive) glue, paint or stain, a sealer some waxed thread (the same you might use for leather stitching or a synthetic sinew, if you're not a stickler) and feathers (they must all be from the same wing and trimmed on same side). There is a fletching vice which keeps the feathers parrallel to each other as you mount them (but it is costly in the scheme of things) or you can just eyeball it.
For tools: sandpaper, a paint brush, a sharp knife a drill and bit for starting the nock. You can get away without the drill by slowly "drilling" the hole with a small sharp hobby knife.
Even if you're off a little when fletching, the arrow will still travel fairly true as any imbalance will be mostly eliminated as the arrow spins toward its' target.
Also check out several archery suppliers charts. They will tell you what weight arrowhead to use with what diameter shaft and weight bow.
The arrowheads I assume you'll smith yourself.