stick with a decent full mechanical gun for a while, learn how it works, upgrade your stuff, new bolt, valve, barrel etc..
if you can swing it get compressed air instead of co2, any change in atmosphere messes with co2 and does a number on your gun and you start breaking balls in the chamber and not shooting a consistent fps
plus compressed air is free if you have a compressor thats good enough or a buddy with one
buy the best mask thats out there, i dont know what it is now but it used to be a jt spectra, double layer lense so it doesnt fog, full ear protection
check out
www.warpig.com and their forums and such, they know more that i ever could
specifically
http://forums.warpig.com/phpbb/viewf...0a464a08f1ede1