Known to some of you, my daft brother has signed up to cycle from London to Paris this summer in aid of the Big Issue Foundation http://www.bigissue.com/events.php?eventid=2 ... so he's after sponsorship: http://www.justgiving.com/peterlynn
I believe the route from London to Portsmouth to catch the ferry is via Rowlands Castle ... so there could also be the chance of a sighting on the Thursday afternoon!