HPS lighting?

I was wondering which of these two light systems would work best? I have read that having the extra spectrum (5000 lumens of blue spectrum) would be good, but I also have read that mirror like aluminum surface reflector (1st system) is not as good as the reflector with the dimpled dimpled aluminum (non-mirror) surface (second system). If they both are not good , due to the reflectors, could I just paint the interior a flat white to reflect better?

I am ready to purchase a light setup for my first indoor grow, but I am on the fence about these two systems. Do I want a better reflector, or a better lamp? Or can I have both with a little white paint?

Obviously I am trying to go as inexpensive as possible because I am not planning on using this set up for any type of distribution (ie through the coop I am a member of), unless I happen to have a large excess. Maybe I could use a 150 watt hps to grow 1-2 plants in2"x2" a scrog grow instead? Any advice would be appreciated

Thanks, Guys

The systems:

1. 400 WATT HPS DIGITAL GROW LIGHT SYSTEM 400W XL SUN LAMP - eBay (item 160476196259 end time Sep-05-10 09:08:56 PDT)

2. 400 WATT HPS DIGITAL GROW LIGHT SYSTEM 400W SUN LAMP CE - eBay (item 370426172439 end time Sep-05-10 16:23:31 PDT)