What light bulbs for flowering?

Plants been vegging for 5 weeks in DWC tub running two 42w CFL lights.

I think soon my plant will be ready to flower, so right now since this is my first grow I need to find out what light I want to get so I can flower my plants correctly, on a budget.

I been searching ceramic metal halide light bulbs (CMH) and it seems like they are the best for my situation.

I am looking for best possible light that produces best bud for watt output and least heat produced,
Highest CMH goes in 400watts and they produces less heat then a high pressure sodium watt for watt.

CMH are new bulbs but HPS is what everyone has used and have good results, so I am trying to find out if I should try out something new like CMH for my first grow or just use 400w HPS?

HPS for flowering

BBB

MH for Veg

BBB

cmh for both

HPS is what you need

actually i use both and a uvb
in a double bulb hood wit uvb hanging off the side

the deal
mh or cmh best for veg
mh or cmh best for first 1/3 of flower to reduce stretch
hps is best for second 1/3 of flower to give you rock hard buds
mh or cmh is best for final 1/3 of flower to take advantage of last bulk up stages

but i use both throughout i spin pots every other day and have them on a large lazy suzan i made that i rotate on every feeding day

oh i like an use phillips -cmh and hortilux - hps

gluck

Know what, I think I should go HPS. I want to use something people have had success with (mainly since CMH bulbs need magnetic ballast and I don't want that noise/heat in my room).

Right now since my grow room is my room, I am looking for something not going to pump out too much heat. So I am thinking about 400watt, would 600watt be too much as in heat production?

HPS is probably ideal for flowering because it has more of the yellow/orange spectrum which is ideal for that stage. MH are bit better for veg because they have more of the white spectrum, which plants crave at that stage.

EDIT: I also supplement my HPS with four red LED panels for an additional red spectrum during flowering. I just starting vegging again recently and added some white/blue panels to supplement my HPS during this phase.