Running a 2.8 GHz Uni MBP and a 24" LED display. Temps without the display are a cool 40*C or so with a couple applications. With the display and a few applications like skype, itunes, safari, etc, i see temps in the upper fifties, or right around 50 just driving the display and a couple browsers.
what temps are you seeing when running your external display?
what temps are you seeing when running your external display?