I would not advise people to buy iLife09. In particular iWeb is very bugged. The blog does not work as advertised. It places images in the wrong entries on the main blog index page and the rss feed it produces is faulty.
There was no problem with iWeb2, but now blogging has practically become impossible.
And there are more issues with iWeb3.
It seems Apple is going for bling, by adding useful stuff like YouTube and html widgets, but the bugs are defeating these small improvements. iWeb3 is unstable. Even for personal, amateur use it is of no use, unless Apple releases a bug fix.