I would get the basic tire changing tools-- tire irons, pump, spare tube, patches. You should learn how to do this one thing if nothing else. You will someday have a flat, usually when you do not expect it. The tire jack in my prior post is a nice addition, as well.
I'd spend a bit on a pump. I've had several over the years. Park tool ones are awful, don't get those, but the Topeak morph pumpss are an excellent small, portable pump.
Tubes need to match the ISO size of the tire, which is 406, IIRC