Ordering Lights, HPS or MH? 400w help

Hey, has anyone ordered lights from Greners before? I still need to get everything as I have purchased nothing yet. But, I am getting my tent there and I have seen some of their 400W light kits, and different bulbs and ballasts. I really dont know what light would be best to get. I want to get both bulbs that I will need for veg and flowering, but if there are ones that can do both, that is even better, but I dont want to sacrifice much bud quality if at all possible.

I will be running a cool tube as well, and I have seen ebay ones for $60, vs $100 on the ones at Greners, not sure which would work better. I know that some of the cheaper ones cant fit 400W bulbs.

And as far as ballasts go, I have no idea, I guess it depends on the bulbs I get. They do have Xtrasun and Harvest Pro ballasts which seem to be cheapest, but otherwise I dont know which type would be best, they seems to range from $125-155 or so.

Heres the cool tube - COOL TUBE REFLECTOR HOOD 6" AIR COOLED GROW | eBay

Or if you think I should order from an entirely different store let me know.

 

Found a 400w ebay kit for cheap

400 WATT 400w HPS MH GROW LIGHT COOL TUBE BALLAST KIT | eBay

This also has a magnetic ballast so I could switch between MH and HPS, but still not sure which ones are better for veg/flowering

I think I might just get this

edit: and this carbon scrubber too
http://cgi.ebay.com/6-INCH-HYDROPON...889?pt=LH_DefaultDomain_0&hash=item3367efc121

 

Ok cool thanks. That kit only comes with an HPS, so I will get an extra 400W MH for veg, and use the hps for flowering. TBH, the only way I feel safe running a hps/mh as of now is with a cool tube, so I dont mind taking the hit in it's reflectivity.

Thanks for your help