I really think the Nottingham Interspace is a significant step up from the Rega 25. It has a high-mass platter, a low torque motor (you have to push-start the platter, no 'on' switch) that is fairly well isolated and plays with more solidity and focus. It is better built as well. $1000 plus arm. The next up in the line, the Spacedeck, is $1500.
http://www.aslgroup.com/nottingham/index.htm
http://www.aslgroup.com/nottingham/index.htm