Well... there should be some info on the board allready about this... in fact the cfl sticky thread at some point discusses optimal watts and more importantly spectrum for growing.

Different lights output light of different bands of the spectrum which are genearlly represented by colors. For veg you want a cfl on the blue end of the spectrum, for budding you want a cfl that has more red light. The color of light is also described in terms of temperature i belive. Bulbs around 2600k are at the bluer end, bulbs around 5500 are at the reder end. The bulbs in the middle are not very good for growing.

Anyway you probably want something in the blue end of the spectrum to begin with.

Also, i wouldn't buy either of those lights. Uses more cfls of a lower wattage, not only will they run cooler so you can position them right next to your plants, you will also save tons of money. you can get 3 75 watt bulbs for about 20 bucks or less. One of the points of using cfls as opposed to another form of light is to save $, if you want to spend a couple hundered buck on lighting you can find a used hps of mh which will genearlly give you better results. you can achieve alot with cfls, but part of what makes them awesome is that they are cost effective in the lower wattage range