Jim McMurry has reported success at running the SlingPlayer within Parallels, a free-during-beta virtualization software for Intel Macs. If you have a copy of XP lying around and can’t wait the 2 or 3 months until Slingbox natively supports OSX, you’ve got your solution. Jim’s Slingbox is controlling & streaming his Dish Network DVR 510 and he has enabled Parallels audio output.
Jim says: I decided to make a project out of getting Slingbox setup today. Not knowing for sure if it would work on OSX, I got everything setup using only OSX and Parallels VM running Windows XP. Overall the video is pretty awesome for a player running inside of a VM on Parallels. Full screen inside Parallels (not full screen Parallels, but Slingplayer fullscreen inside Parallels) works very as well.
(Thanks for the scoop, Jim!)