Has anyone every bought equipment from www.northerlightsgrowroom.com? They have a 250w HPS w/ conversion bulb MH for 179.00 plus shipping. Is this a good deal? Also, what is a good fertilizer for soil growing? I used Miracle Grow but had many problems. I live in Philly so I need something that's sold locally or I can mail-order. Is 250w good for a grow space of 3'x3' I don't want to buy the wrong size light? Any good prices on black/white poly?