Power supply for GTX 480?

i just brought a GTX 480 and i was wondering will this power supply support my GPU requirements?
system config:
AMD Phenom II 945
8 GB DDR3 Ram
500 GB HDD
Asus motherboard
Update: @chris thanks for the answer man
btw what does 42 amps on +12v rail means?
(it written on the box under requirements)
Update 2: @Lib Nemesis
thanks for the answer and clear the 42 amp confusion
anyways will this meet my requirements?
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