Im using 6500k T8 Fluorescent tubes now and my plants seem to be growing pretty good considering the mess I started with.

I had one fixture on hand and had to buy a second at walmart for $12 and the bulbs themselves are were $15 for two two-packs at Home Depot.

You can check out my thread HERE to see how my girls are going now.

I would suggest better lighting but for a small grow you should be fine with T8's or even CFL's if you wanna keep the budget down.

BTW, if you do use T8's your going to need to buy different bulbs when you switch to flowering but the T8's reco'ed for flowering are $15 bucks at Home Depot too.

EDIT: Grow atleast two plants. That way if one ends up male you still have a female to harvest in the end. I started saying "only one" and now I have four just in case...