It should be plugged in the same as the other fan, to an availible molex connector from your PSU. I would also recommend switching your fans back around and having them exhaust all hot air from the case, intaking builds up air pressure and will not effectively cool your case.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w