well quality over quantity. Captain Morgan is what most kids drink vanilla and spiced rum, tho you can get a 92 proof cherry rum called Sailor Jerry for cheaper. I've been buying nicer rums anywhere from $25-40 per bottle.
So start off with Jerry and if its too strong, try Capt Mo.
I do that as well, if you're gonna get drunk get STINKIN DRUNK as I say =p
makes sense ya, Boiledapear