I totaly agree, very nice tanks, i have AR620t.
My lights and filter are out in the garage collecting dust.
If i could start again i wouldnt buy an Ar tank, definately go for a tank with an overflow and sump.
Then again, you already have the tank, so if you are keen then,
Hob skimmer, loose the top filter.
Live rock, a couple of good power heads.
As for light i will leave that to the pros :lol: i will be getting a halide for my tank soon, at the mo i have two aquaone AL20D lights(easier access than the standard hood), but dont have any corals.
Hope this helps, you wont be dissapointed either way, i put off going marine for years, and wish now i had done it earlier.
Here is my tank so far
My tank