When I go afk, I like to sleep the monitor on my 24" iMac while still leaving my computer running.
Get a 3rd party mouse that has lights on it, like the one I use...
http://blog.razerzone.com/images/Habu/Microsoft-Habu-Angle2-black.jpg
I find it helpful to know if my computer is still running when I return, and the lights on the Habu mouse does exactly that.
Of course if your computer goes into full Sleep mode, the mouse light will turn off. So this isn't a complete solution, but I can live without knowing if my computer is sleeping...I'd rather know when it's still ON.
Get a 3rd party mouse that has lights on it, like the one I use...
http://blog.razerzone.com/images/Habu/Microsoft-Habu-Angle2-black.jpg
I find it helpful to know if my computer is still running when I return, and the lights on the Habu mouse does exactly that.
Of course if your computer goes into full Sleep mode, the mouse light will turn off. So this isn't a complete solution, but I can live without knowing if my computer is sleeping...I'd rather know when it's still ON.