MacWorld is publishing their through their iLife reviews, the iWeb First Look is the best introduction to the software I've come across.
They have reviews on iDVD and iPhoto. The iPhoto review is probably the best documentation we'll see for a while. Overall, great work by MacWorld.
The educational price for iLife is $60, so I broke down and went for it. It will hold me while I wait for Aperture to improve.