ITReviewed posted a review on iLife '09

Apple's iLife '09 is one of the most impressive collection of media applications on the market. If you are an iLife '06 user and your system can run Mac OS X 10.5 smoothly, iLife '09 is certainly a significant step forward, but if you are happy with iLife '08 then it becomes a harder sell. Apple doesn't reward loyalty either: there are no discounts to owners of earlier versions, so whether you are running iLife '04, '06 or '08, the '09 version will cost you the same. Nonetheless, iLife is still the best suite out there for combining your photos, videos, and audio recording into stunning projects to show friends and family. If you've got multiple Macs in your house, you may want to consider the Family Pack (Best Current Price:73.60), which comes with rights to install the software on up to five different machines.

Apple iLife '09 Review