<< no, don't waste money on pads.
while you are at it, do not get a mask either
paintball is much more fun without either >>
I hope that was a crappy attempt at sarcasm.
Anyways, you should look for a spyder compact, it's a good starter gun, with the double trigger, etc. The vertical setup is alright, but if you like bottomline (tank mounted like a stock), it's more expensive. The JT Proteus is an ok mask, at 40 bucks. You do need a loader, also known as a hopper, which runs around 5 bucks. You also need a CO2 tank, which is around 15-30 bucks, depending on size (9, 12, 16, 20 oz). For a vertical gun, a 9 or 12 works nice, 20 is too damn big to be lugging around, but with a bigger tank, you dont have to refill as often. You're better off lookin for a package, since you don't got all the s3it already. You also forgot paint, which runs around 15 bucks for 400 (Zap, Proball at Sports Authority), to 50-80 bucks for a 2000 round case of paint.