I'd tell you to buy pre-lubed & sized.
Reason being, getting into casting AND reloading at the same time may overload you and make it seem like "too much work" and you'll be less likely to carry through with either.

For that matter...
http://www.missouribullet.com/detail...ry=8&keywords=

$.06 per boolit..

half of what you were going to cast your own for..