The Transfi Terminator linear tracking air bearing arm is about $1000. I found it to be a real revelation compared to my tricked out RB300. There are several good post on the Agon forum and reviews.
Tone arm upgrade
I'm currently using a Rega RB300 modded tonearm ( aftermarket wiring harness and counterweight). I'd like to consider a step up, have been keeping my eye open for a good condition used Linn Itok arm. Is this the right path or in the $1~$2k price range is I there another good alternative?