John Prophet:
I purchased my CAT5e from Home Depot (10 / 15 cents a foot, I'm not sure), a box of RJ45s (several dozen) and a good crimper ($25 - $30). I have not seen a "kit" either.
If you've never crimped RJ45 terminators (or connectors) onto CAT cable before, don't let all the horror stories on the Net freak you out (with all due respect to my bud who posted while I was typing!

My wife used 2 RJ45s, first shot, works great! Good luck!
Brangwen