Lighting

well i have bloging allot lately and you guys have been a big help i am farly new to the salt water and reef but i have had fresh water my whole life so i know allitle more then the average joe so i am going to be building a canopy is there anything i should know before i attempt this endeavor my tank is a 150g it is one of the 15g that is the same length as a 55 but it is pretty tall and wide i guess it is consedered a space saver i am going to be building my own light set up 4- 48in t5ho lights ...

ok guys im am going to be building a canopy for my 150 gal and i have a 2 bulb t5vho light but i dont think it will fit in my canopy so i am looking into buying a ballasts to run 4 t5vho bulbs 48in, i am looking to get one at a good price i found 1 in my hunt it is the icecap one and it is 175 i think thats to much any ideas on where i could find one at a cheaper price and also i was thinking about doing the light in t12vho because of the higher watts but i was told by the people at icecap that ...