If you have the 5g spec, you can check my setup here;
Introduction and my fluval SPEC V
light : Finnex Fugeray LED 16" on timer 7hrs a day. stock LED is okay i guess, but it's a little weak and like you mentioned i did have problem with the screw holding the light, decided to replace it.
heater : hydor theo 25w. or basically any small heater that you can fit in the back part, works for me so far
substrate : netlea aquasoil
CO2 : paintball regulator on it's way
I'm still cycling my tank, it's been 3 weeks now. Minor algae and diatom issue, nothing serious so far, but the PH is kinda low, still waiting for it to go up