Book - $20
Single stage press with all the trimmings - $400 (think RCBS, Lee, Hornady, and others)
Good progressive press with all the trimmings - $600+ (Lee, Dillon, and others)
Powder - $20-$25 per pound
Primers - $40 per 1000 (about the average)
Bullets - $20-$30 per 250
All in all to start up, I spent around $600 to produce 250 rounds initially. My price per round is around $0.18, with retail 9mm going around $0.30 to $0.35 per round, even more in places.
People say you reload to shoot more, and you can't save money. I personally think that's bullsh*t as long as you control yourself and plan a budget. I will probably shoot more, but I won't spend as much shooting in the coming year.
If you're on the fence, invest the $20 at least and grab a reloading manual - Lyman #49, Hornady #9, or Lee's reloading manual are all good places to start. You might as well - you already ordered 2000 rounds.