Which 600w light to go with?

Hi I'm planning on going with a 600w mh/hps light in a 4x4 tent. I'll be vegging and flowering from seed. Which set up do you like the best?

A http://cgi.ebay.com/MH-HPS-Air-Cooled-Digital-Grow-Light-600-W-Watt-600W-/320634312602?pt=LH_DefaultDomain_0&hash=item4aa74b579a

B http://cgi.ebay.com/600-WATT-600W-HPS-MH-DIGITAL-GROW-LIGHT-COOL-TUBE-HOOD-/230564959155?pt=LH_DefaultDomain_0&hash=item35aebe13b3

C http://cgi.ebay.com/600W-HPS-MH-DIGITAL-GROW-LIGHT-AIR-COOL-HOOD-600-WATT-/160507066469?pt=LH_DefaultDomain_0&hash=item255ef77865

I like C myself, as I was looking at that exact same one from HTG.

Don't Like (b) as the MH Bulb (For Veg) is only 4200K and it needs to be upwards of 6000-6500K I believe.