Amazon lists it as costing $89.98.
It also says it will have 8 discs.
Amazon.com item
Song/BMG slates the release for october, but we're also hearing November as well. (Scroll down to 1.10.07)
Sony/BMG site
There is also a Corellian collectors edition that will come out. It is said to be similiar to the Target Exclusive CD that has tracks from all 6 films.
Scroll down to look at it
I thought I'd make an announcement and will keep you all posted with any new news