Right, just to bump this up again, as there has been some views of the thread.
Both JV and Joe went to this last year and both stayed in the same hotel and said it was great, the Tulip Inn in Leiden. As the show is in Valkenburg its about 15mins from the hotel, and Leiden is a great town, with just about everything you want in it.
Last time I looked the ferry/chunnel from Dover was about the same price (£40 each way), but the low cars will have to be careful with what mode of transport you decide.
I plan on going over to Leiden on the Friday and then leaving on the Monday, and somewhere in between knocking back some local beverages (and shopping no doubt).
So if you fancy it put your name down and I'll sort out dates, and possibly a cheaper chunnel through work.
1. Lewy and Mrs Lewy