I too am among those who experience the "1-minute-left" freeze during installation. Tried all solutions suggested here but still no positive result. I believe until someone finds a fix for this, the 10.5.2 Rev.1 is essentially flawed... That and the downloading/unarchiving large files issue.

You can try this http://osx.kbot.de/comments.php?Disc...page=1#Item_17