That is extremely helpful - thank you.
To save other wading through the link the key dates are as follows:
05 Sep 08 Deadline for applications for 11+ testing
02 Oct 08 First 11+ paper
08 Oct 08 Second 11+ paper
21 Nov 08 Results day
07 Jan 09 Appeals commence
02 Mar 09 School Allocations Day
Also of interest for some (mainly those out of County) might be the dates of 27th - 31st October for non-school testing at central locations. So don't book a half term holiday.
What has really hit me about seeing those dates in print is the ghastly realisation that it's our turn again this year.