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Hello Felix,
Thanks for the suggestion on the Sony PS3 Remote.  I picked one up this weekend and everything is working fine now.  I couldn't get it working in the beginning until I realized that the bluetooth was turned off on my macbook.  The only thing I don't like on this is that there are no up and down arrows that could be used for system wide volume control and no power button.  Ever think about developing a cheap bluetooth remote with a better button layout and sell it as a bundle with your software?  I would think you could get one contract manufactured very cheaply.
On a separate note, I noticed that the "channel up" (=) as a pre-installed function on the Slingplayer did not work.  Channel down (-) did work but I had to install a custom action to get channel up working.     I am not sure about this, but it seems that using default mapping for the slingplayer could be a problem.  For the slingbox tuner it is probably not a problem, but for the slingbox AV, you choose a remote based on the dvd recorder, tivo, etc. that you have at home and want to control.  It may be that channel up on my ReplayTV box is a different keystroke than channel up on a Tivo for example.
Thanks,
Tim