[the_third_wave]

That probably depends on what vintage machine you're trying to install it on. I'm typing this on a "late 2009" 27" iMac running just that, Debian. I did not have to hunt down any drivers or slaughter any black cockerels to get things working, the only "special" thing I did was install rEFInd [1] to deal with the EFI bootloader. That's it, nothing more. A simple network install later I had Debian running on the thing, sound and network and Bluetooth and wifi and accelerated graphics and all. The "iSight" camera works, the "remote control sensor" works, I can control the screen backlight, things... just work. With 16 GB of RAM and the standard 2TB hybrid drive the thing has years of life left in it as long as I can keep the graphics card running - it has been baked in the oven once to get it back to life, no complaints from me since I got the machine for free because of the broken graphics...

[1] http://www.rodsbooks.com/refind/