i am looking to put together an average grow room with a few plants and i am not trying to spend a ton of money. the room i decided to dedicate for this is about 8ft long, 5ft wide and 8ft tall. any suggestions would be nice as to what lights to use or how many watts or suggestions on the best growing method for the space im in and the budget i am on.500$ on a set-up would be nice and of course i would want to upgrade it in the future. so i would like to invest in something that is nice and going to last and something i could use to upgrade