Lignting Help Needed

Hi Guys & Gals,
I have a 72 gal tank, I am thinking of upgrading my lighting, to 2*55 (Giving me 1.5 wats/gal) from AH supply.

My question is there are same watt bulbs with different Color Temp. which I know nothing about.. (Chart below)

Please advise on which type of Color temp I need.
I will be going with low-medium light plants.

Plus I want to be able to look at my tank, and not blinded by it.

55 5000K
55 5500K
55 6700K
55 10000K
55 Bright Blue
55 Deep Blue 03
55 10000K/Deep Blue 03 Combo

Thanks Mr. Harlock
i have decide not to go for the 55 from ah suppy.. i though about it changing my wattage from 1.3 to 1.5 would not chnage much.. now i am thinking about adding another 32 watt tube...

that would increase my watts from 1.33 to 1.7...
what do you think.. plus if you know any online places where i could get a tube blub and all the good stuff that goes with it..