i used a 6500 bulb 2 crops ago with the same strain of widow i always use, same as i always do and they ended up stretching like fuck. Now im back on mh veg, hps flower with a 250w 2700 cfl, stayed short and just started to fatten;)
i like the buckets, very pricy tho, you could make one for $20!
the v-drip seems a little small, so is the res. Personally, id make one big ebb & flow table with hydroton, like mine - works excellent and use a 60l res, little fluctuation in temps, ph etc