A Question for the English Block

And for anyone else who might have opinions...

Starting to do the preliminary plans for a belated honeymoon. We're thinking England-Scotland-Wales for about 2 weeks next summer (2007).

Question is, weather and crowd-wise, would you recommend the last two weeks in May, or the first two weeks in August?

We're leaning towards August, but I know that in France, the whole country is on vacation then and it's not the greatest time to be there. Just wondering if the UK is similiar or no.

Thanks.