I'm totally torn as to what I should do here :/
at the moment I have my gaming pc
i5 755 CPU
seasonic 500w psu
radeon 5850
motherboard: p55-ud3r
I'm torn, do I turn this into a mining rig or build a new one?
I have $400 to play with... can boot off USB
do I buy another 5850 for this machine? buy 2 5850s for a new machine? or secret option C, your suggestion?
help
budget may be extended but as little as possible please, im 16

also I need the best bitcoin explanation that explains how I'm getting money, for the folks

cheers