the least light u can grow with (meaning the cheapest) is fluorescents. Go with tubes or cfls (bulb-fluorescents) U will need at least 40W per plant but u can really get lots of them, they dont cost very much. u can find 24w bulbs at 5 to 10$

yeah and do some reading.. its very simple actually to grow a plant. But u have to do some homework to do it right. If u get seriously into it, u will feel like studying and u will see it as a hobby. Coz it is a hobby. It needs attention. Plants dont grow by themselves: they need food, light, water in controlable doses. They r living creatures