I have PMd and am on List #5 =] Plenty of time for me to get the topper selected and ready =] I checked the list for bottom feeders that had been posted and I already have a Vision Eternity, which is actually one of my favorites <3 Also mentioned in the list are the Killer 705s, and I have multiples of those since I started with carto tanks and always wanted a carto I could re-coil instead of trashing them once they gunked up.
I might have to pick a new topper, regardless, one that is just for this Dibby :/ ...something that is low and fat and not so heavy... it's like planning for the arrival of a new baby LOL
For rebuildables, I would recommend that you get a ReoMizer 2 (rm2). That is the easiest to rebuild. Note that a bottom feeder does not need tanks, the tank is built in.