Lighting

I have 2 250 watt IceCap ballasts. One has a 14k hamilton and the other has a 12K Reeflux. By the way, both bulbs are almost identical to the eye.
I noticed that once in a blue moon my hamilton bulb would flicker (when I say flicker I mean a very fast and subtle flicker, one can only notice when paying close attention) but this would occur for about a minute and disappear for a long while. It actually doesn't happen anymore. On the Reefluc bulb, however, this flicker does not stop.
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I have long been lurking on many forums researching and ogling many peoples tanks. I have learned the immense value that these threads/ blogs have for everyone who is willing to read them and have decided to try to start my own in hopes that others will be able to learn from my mistakes and use my limited knowledge to help them succeed in this wonderful hobby. So without further ado, here are the system specs.

Goals: This will be a predominantly SPS tank with a few choice pieces of ...

I have an outer orbit fixture that I want to hang from the wall or ceiling. My ultimate dream would be a retractable cable hanging mount of some type so that I could raise the fixture when I need to get into the tank. The tank is thirty inches deep so when I need to get near the bottom I have to almost lay across the top of the tank to reach. Anyone seen a setup or know where I could get something like this? I remember in my fathers house we used to have a dining room light that could be raised ...

When I got the new IceCap LED moonlights, it took me a while to come up with a way to secure them. It's important to me that the bulbs are well-secured; lighting that dangles loosely isn't something I can live with. The canopy over the top of my tank is removable, and there's no woodwork in place to screw them to. Here's the little clip that IceCap includes with the bulb. With a few tools and some aluminum U-track, I came up with a working plan.

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Ok, I have two PC's lights but they are not the 50/50's, two whites on one and two blues on the other. My question is: Would you put the blues in front of the tank or the whites?

Now protein skimmer question: are you suppose to have any bubbles coming out of the return at all? Also, I still don't have much foam in the cup so I turned it up a little last night, thus creating some bubbles out of the return.

Thanks for ya help in advance!