Which one should I get?

[sharuq1]

I have the possible opportunity to either get a

Coralife Aqualight Pro 36" HQI

or

x2--Reef Optix III pedant for HQI 250W bulbs with IceCap 250W Electronic Ballast

This will be for my 36" bow tank, which holds either 46g or 48g of water. Little help please on choosing what to buy? Or would you do something different all-together? I want to be able to put in mixed corals and possibly a couple of clams as well. Money is a factor.

Thanks for your help and advice canreefers!!!