Just won a raffle and one of the stores to receive the Gift Certificate is my LFS. I just bought 40lbs LR from liverock.com and will be buying 2 250 or 400 watt MH's within a week or so. What should I do with the gift certificate? Should I buy some supplemental lighting, get a 60" long 24" deep aquarium instead of my 31" deep, save it for fish/corals, buy more LR, buy a few powerheads to move water better....or something different I didn't list, what would you guys do?