In reply to peezy315's post:

Depending on the size of your space, you probably need bigger lights. If you have anything bigger than a 1'x1' space your going to need to up grade to bigger lights very soon. Additionally, watts are NOT as important as the number of lumens and the degrees Kelvin that the bulb produces. Between 10,000 and 15,000 lumens/2-3sq' is desirable and you want a mixed spectrum on the Kelvin. In other words, you always want bluer bulbs AND redder bulbs as this produces a more sun-like light. During veg you want more blue and during flower you want more red, but if you get a good balance between the both then you can use the same lights the whole time just switch to a 12/12 light cycle when your ready to flower. In addition, lights labled "Plant Light", are not always the best bang for your buck because its just another marketing technique to sell more bulbs. I'm using two 300w equivilant cfl (they're about the size of a 2 liter bottle each) and two smaller 100w cfls to give me more red. This requires minimal venting and the lights can be less than an inch from the tops of the plants with no adverse effects. And you do NOT want to be on a 16/8 light cycle as this can confuse your plants and cause premature flowering, 18/6 is the minimum light on you want. Most advanced growers will tell you either 24 hours on (i.e.- always on) or 18/6 for veg. I go with the 18/6 personally, as I feel it makes for happier plants when they have time to rest.