Welcome to the sport fella.
Let me see if I can help ya out here.
Paintball is run in three main ways:
Supair: Mellenium series is a good example, played on a field full of inflateable battlements...very fast, use electro gats great fun
Woodsball: Erm... in the woods. Kinda 'Army' orientated. Tippman markers are very popular for tis kinda thing.
Recball: Pay your money, go to your local site, play some ball
Ok, for markers, may I suggest you take a look here:
http://www.lpspaintball.biz/acatalog/MARKER_PACKAGES.html
The marker packages Lipps do are great for beginners.
Yeah I know it means buying it knew, but they can give you a good idea.
As others say, the Tippman A-5 would bemy choice for woods, and the legendary SP Ion for supair.
Hope I have helped matey.