There are posts here and there in the plNt problems section that mention m.g. and problems later in there grow. u might not have any problems, but its just a suggestion. As far as lighting, you plants will bud under any light I believe, however quality isn't gaurenteed. I've sen a whole grow cycle.started and finished with florescent lights, but his buds were tiny. For ur small space, is suggest a 250 watt light, and whatever bulb u prefer..
Just my 2 cents