well you're verified, so you have access to the classifieds, so you can find some nice stuff in there...generally if you're looking for a REALLY well made rebuildable, you can find a few genesis style or GG attys floating around there...the Z atty pro (aka the ZAP), the DID, the DUD (clone of the DID), the Odysseus (aka the oddy), and the penelope (aka penny)...are ALL great options....the disadvantages are they can be hard to set up, the zap being one of the most complained about lately as they use special oxidized stainless steel mesh wick that can have hotspots, however, i've not used one, but it seems to be the hottest thing since the toilet seat after a night of mexican food....
now as far as the others, i've tried a DID, and quite frankly i wasn't so impressed, as you still have to tip it like a vivi nova.... the odysseus and the penelope use the same style atty, a wick wrapped around a coil, that is fed juice by a vaccum when you inhale on the atomizer, and i was QUITE impressed with the delivery system, flavor, and performance....since i tried it, i bought a penelope, and it's far and away my favorite piece in my collection so far....it works, vapes like a freight train, is made of solid stainless steel (thing seriously feels as indestructible as the provari itself), and once you've gotten past the initial build, its really only slightly more annoying to rebuild than a vivi nova....
and there you have it, i'm no expert, but its a brief synopsys of the high end rebuildable attys out there, as far as non-rebuildables, i personally prefer an i306 or an HH .357, or just stick to my cartomizers...hope this all helps