Hey dru, i bought one of these cadlights 22 gal tanks too and mine is doing great. i mostly keep LPS so i didn't need to get the halide (i am scared of the heat). i have only 3 pieces of SPS and 6 pieces of LPS. I bought the Cadlights 6 bulb delux model so i had no problem keeping the sps. i put them about 3" from the top. i saw that you got the 4 bulb set-up?
how do you like the cabinet? i was planning to buy one from their website but thought about getting the tank first. they sell the cabinet for $200 bucks, it seems like a pretty godd deal because it looks like a real custom-made wood cabinet.
i also have a 5 gallon cadlights nano on my desk at work and a 90 gallon oceanic reef in my house. my wife thinks i am a nut for having so much tanks.
great set-up, i will try to post some of my pics ASAP.