I'm just about to order my tickets:
Register Online 
Opening times Sunday 1st July 10:00 - 17:00 Monday 2nd July 10:00 - 19:00 Tuesday 3rd July10:00 - 16:00
I think the Sunday option is probably the best. We'll get less hassle when we're in there as most of the sales guys on the stands will be there the longer week days I would have thought. Plus, if we go down saturday daytime, book in a hotel and chill near by, late arrivals can just check-in and come to us, then we can go out at night.
I'll have a look at hotels around the area too. I get discounts at some hotels as we book for car shows and what-not.
Any views before I get my sunday tickets?