Today (and part of last night) I got the light fixtures installed in the canopy. I ran into a few problems, but nothing too serious. The mounting holes lined up perfectly with the very edge of my canopy's lid, way too close to the edge, so i had to drill new holes in the metal mounting brackets to avoid from damaging the lid (and possibly the lights).
Next I had to figure out a way to mount the lunar lights in between the two fixtures, as they were meant to be hung directly above the aquarium and the only real room was in a small between the two lights. I didn't want to drastically modify my nice, newly stained and sealed canopy, so i tried to figure out a way of mounting them that would allow for minimum disturbance to the canopy.
After a walk around the hardware store, I decided the best (or at least easiest) thing to do would be to cut 4 chunks of 1x3" balsa wood (the lights needed to come down about 3" to sit flush with the main fixtures), and take these little 'blocks' and put a male piece of velcro on the top (balsa = lightweight = easy on velcro) of the balsa block and a female piece on the canopy where I wanted the light to hang.
I attached the lunar lights to the balsa with velcro also - they're tiny and don't weigh more than 20 grams or so...So, if for any reason i need to move (or god forbid replace) the lunar lights, they're easy to take on and off. Also if I want to use them on another tank in the future, all I'll have to do is get some female velcro pieces and I'm in luck! I wrapped the wiring that connected the LED lights with electrical tape to take up any slack and help insulate from any heat that may build up from the reflectors on those parts of the wire most prone to heat exposure (ie any wire close to the reflector). Can't see (or think of) any flaws or potential problems as of yet...
In the first picture you can see the lunar light attached to the balsa and wrapped in electrical tape - the pics a bit washed out because of the reflectors, but i wanted to include it so that anyone interested could see exactly what i had done, as well as the positioning of the velcro on the lid itself...
The second picture shows the 4 LED lights "mounted" between the two banks of T5's; and the third picture, well, if you can't figure it out, then please close this window now and enroll in school.
i gotta thank blueridgereef, who gave me the idea of using a 1x1 mounted on the top of the hood on which to connect the lights; i kinda tweaked it. He mentioned an "upside down street lamp" which kinda made me think, "why not do each light individually?" which, well, I did. Any future shortcomings (which hopefully there are none) i take full responsibility for, however!