Buy a bigger CF card than you have installed / Are using , If you dont launch on start up "Magic Lantern" The cam still works as a normal 50D , No sound obviously ( unless you buy external plug in;s) , But full 1080P Video , The Intervalometer is a cool thing to play with , The HDR function , The extended ISO , Hey and Roosta , I have'nt installed it yet , Make sure you have Firmware version 1.0.9 from Canon , My mate has it installed and we had a play on his Camera , I'm not sure yet , Cause if it goes wrong on install the camera is trash !! , But if you look on the internet , The version for the 50D Ver 2.3 is Very, very stable and has'nt caused any probs , All they have done is improve on Canons firmware to get the most out of the Camera, I've downloaded it , But just waiting to see if there's any probs with my mates , Which was uploaded by mistake , He thought he uploading Canons latest firmware
PS : Have a look here Roosta :
http://www.youtube.com/watch?feature..._YyP-HJcU&NR=1