I smoke to make other more interesting. Need help with purchase (HPS)

Gday cobbers n cobbets i am currently trying to decide on what 400 watt hps kit would be better for my grow-op.
currently i have a very large double door wardrobe and have decked out one side with fluoros thats working very well but now im in the market for a flower light and cant decide whats better (mainly the choice of shade im not sure about) below are the two kits im tossing up between.
Any advice will get +rep
Thank you

P.S. heat will not be an issue so because im a tight ass i will not be getting a cooltube but will upgrade later to a digital ballast

They're nearly identical except the material the hood is made from, so whichever hood is more effecient is the one I'd go with. The only thing I'd add is that I wish I could go back to before I bought my light, and research this forum so I could find out that a 600w HPS puts out almost twice as many lumens (90,000) as a 400w HPS (50,000). I'm probably going to end up buying a 600w HPS and using my current conversion lamp as a MH for veg, simply because that difference is so drastic.

Have you seen these?
http://www.htgsupply.com/viewproduct.asp?productID=47929
I bought two - pretty happy with them so far, and they are about the same price as the two you listed with the shipping included.