2m x 2m x 2m grow tent "Lights"??

Ok so ive had a windfall of cash and am planning on a nice big grow tent 2mx 2m x 2m what do you guys think about lights i was thinking a 1000w with cooltube, any advice

i just ordered a 2mx2mx2m and got a 1000w hps with 6" cool tube. if you live in canada check out some ebay sellers this tent and light setup was cheap for me.

i got the tent
1000w digital ballast
1 hps bulb
1 mh bulb
6" air cooled shade
6" carbon filter
2x 4" 270 cfm inline fans
6 sets of rope style yoyo hangers

for about $650 after shipping.

i plan on having one fan for the light that will draw from outside the tent go through the light then back outside the tent (all sealed) being such a big tent the temps should not be so bad this way.