Personally, I use the Passport 8500 X50, but I don't need to conceal it. If you want an ultra-cool, concealed set-up check out the Stealth One / Valentine combination (2 different companies) You end up spending about $600 between them, but it's a very nice install. The Stealth One unit interfaces with the OBC and displayes the radar detector data on the speedo readout.

www.stealth-one.com

-- Kelly