DV Magazine's March issue features a overview of gamma-corrected compositing by the venerable Meyers. Thanks to Chris and Trish for the shout out to eLin, and for boiling down the evangelism portion of the eLin docs into a very readable two pages!
Trish and Chris Meyer are the authors of the undisputed bibles of After Effects:
Someone finally did it.
A friend on the Media Motion AE list just posted news of a freeware 32bpc compositing app called Edo. Mac only. Like Shake. Except Edo seems to use the GPU for various realtime effects, including 3D transformations and stuff, in very much the same way that Shake does not.