check out:
http://www2.888paintball.com/
they have some good prices, but you cant beat the service you will get from your local field/store. getting a mask first is what i would recomend as well, it is probably the piece of equipment you will keepo the longest. Markers are always being sold to buy the newest gear.
Where are you from?
Check out pbnation.com
it is a forum and has a spot where you can get some hot gear at great prices. good luck
-Berger cpt. Team CompetePaintball
WWW.competepaintball.com