http://atsearch.autotrader.co.uk/WWW...00536207004524
there arent many for that price, granted, but there are a few.
if you just need the extra seat (or 2) occasionally then yer estate + 2 seats is an option, and you will get a bit more for your money - i believe there are companies who can do teh conversion to any car too..
you could get a volvo v70 7 seater, but it would be older than other cars on yer list. it shoudl be more plush, and last longer, but if it goes wrong you might suffer higher costs..
406 is a good choice if you want a 7 seater (2 babyseats in the back, then 2 older kiddies in the boot)