nowickia

I am the proud owner of a pair of Klipsch RF-82s and absolutely love them. Now I'm in the market for a headphones upgrade from my Sennheiser HD 280 Pros, which are mediocre at best. I would like to find a set of headphones for $200-300 (ish) range that give a sound similar to my RF-82s. The problem is that I want circumaurals. Unforutnately, Klipsch doesn't make any and I'm guessing they probably aren't interested in that market. Anyone have any suggestions? I do plan to run them on this amp: Hotaudio Mark IV. I have been working on getting an answer from the head-fi forums also. Thanks!