Are you sitting the exam on 20/11/10? If so, at this late stage I would recommend concentrating on the VR as this is worth double in the exam.
The VR for the Essex 11+ is usually tough, so as many papers as possible for familiarity. The VR uses all 21 types so I would recommend downloading the Tutors papers (from the E-papers on this site) as they will arrive instantly on your desktop and order the Bright Sparks papers (from the Book Shop tab above), which will hopefully arrive in 3-4 days.
Order the last two years papers from CSSE. If you do last year's papers and a VR then total the scores (doubling VR) you should be looking for a score of approximately 140 marks.
For extra maths papers you could do some of the manchester grammar school papers (not the same format as CSSE but a good level of questions) available at this link.http://www.mgs.org/index.php/publicatio ... ion-papers
If you are desperate for more papers then pm me.