Since boxed equipment pictures are near obligatory on these build threads, I thought I'd include one for completeness...
This weekend I plan to work on a light rack for the Orphek fixtures. I'm currently taking some inspiration from you guys that build the ones that slide back from the tank for access. If anyone has any light rack experience they wish to share, I'd like to hear it.
Closet door rails work great. On my old 180g in wall this is what I used. I made a rack out of extube.com , mounted it to a pully which I could raise and lower. That was mounted to some high quality rollers which I could pull back 8 -12 feet.