Title says it all really. Cancel as soon as you are told that the carrier is yodel. If you want to wait past the 3-5 working days then thats fine, but if you really want to deal with phonecall after phonecall with amazon, and it arriving two weeks late, go ahead.
PS3, as expected, brilliant. Must buy! :) Make sure you buy a HDMI cable if your tv is compatible! The graphics are far better than I expected.