Angela. COngradts on the tank.. sure wish I could go that big... wifey would kill me.. maybe... I had GC make my 20 long sump for me. put in all the baffels with an error though. had to add 1 extra baffle and render another useless. other than that, I LOVE IT. great workmanship.
On the DSB. while properly maintained, I have heard of some success out of them. I TOTALLY understand the laziness factor. I am always having to travel out of town and therefor, the less crap I have to deal with, the better for both me and my wife. I am most likely the most laxidasical reefer here as far as my maintence. My sand bed is about 2 to 3 " deep and honestly, I put too much in. Why would one Siphon their sand? only reason I can tell is to remove detritus or fish poop. with a proper cleanup crew and sand sifting fish like gobies, it should never allot the nasties to build up.
Now, I am in no way shape or form knocking your ways or trying to force mine on you, just giving you a bit of my insight. A different school of thought if you wish. Heck, (plug your ears newbies) I dont even change my water. well.. I did have to when I moved, but havent since (2 months) and before that I cannot remember the last time I did.