Hello and welcome,
when looking for a gun, have a think of what type of paintball you want to play?
1. Scenario paintball
2. Tourney (sup air) paintball
3. A bit of both, in which case go for a tourney marker, they are lighter, have different functions like ramping, capping of bps etc.
If you see something for sale at the moment and because you are new and can't post in the classifieds don't worry another will pop up in the for sales page or post up in the wanted threads. There is a wealth of info and advice in p8ntballer and don't be afraid to ask if you are unsure....