so many choices for HID's

[LumenarcIII]

lights, lights, lights...

There are so many choices for HID's, I thought I'd see what you thought. I can only afford 1 good HID system (or about 500.00) and I'm torn between the following choices.

LumenarcIII (hps-MH Switchable) with it's up to 45% more lumens. 400/430(x2 MAYBE) - 600 - 1000

or

Sun System VII Super Spectrum System (Dual ballast HPS & MH in one reflector/ballast) 500 - 800

Then there are the following bulb choices: Hortilux SonAgro Agrosun SuperAgro

If I got the Super Spectrum, would I benefit by replacing the bulbs with a combo of Hortilux/*Agro* type lamps? Would that @ 800, spread spectrum, watts be better than 1000 MH then switched to 1000 HPS. If I got the 2x400W LumenarcIII, I could seperate the veg/flowering rooms but they'd be smaller. Which combo would YOU choose of one system with any combo of those bulbs? These are all based on new systems so used might be an option also.

Also I'm torn between the various light movers.

Thanks!