We come from Uk too, and usually drive up to Croc Bridge area on first day.
I agree with what every one has said,BUT, this all depends on what time your plane arrives!! If you get in at 7.30 to 8.30 ish then all will be OK. If you are arriving any later then you will not make it up there comfortably before the gates close, and I agree that the first night at Malelane might be a good idea or even Nelspruit area. You can arrange ahead for late entrance at CB & Malelane as it right on the approach road, but I am not sure about BnD. Forumites here will know.
We have arrived twice on the Emirates flights which are usually late, and get in at about 11am. By the time we have picked up the hire car, stop a couple of times for petrol etc, it is 7pm before we get to near Croc Bridge. Also the sun starts going down at 5pm and it is dark at 6 prompt. Driving in the dark is not fun over long distances if you got off a plane from UK that morning, especially if its atwo sector journey. Other forumites may disagree, but if you are on a late arriving plane I promise this is accurate! We once drove to Kruger Gate Hotel off a late plane.............never again! It really does take about 6 hours.
I would rather get to Nelspruit or Hazy view, stay over night in a hotel, have a nice meal etc, and a good sleep, and be nice and fresh at the park gates the following morning than wake up exhausted in the park. ( Dont forget the two hour time difference does make a difference in terms of getting up in the morning even if it doesnt give you jet lag! South Africas 5am is UK's 3am) Then you can drive peacefully and game spot all the way to your camp, check in at 12, have a nice rest, and be fresh for an afternoon drive.
Having said that ,the journey to CB I find easy, its basically N4, left to komatipoort, all the way through komatipoort and left again to CB. Nothing tricky at all. But still 5.5 to 6 hours inc stops. They have a little shop which is quite good and it is a friendly kind of place. We stay at Ngwenya and not CB , but I love the atmosphere there and we have had a good night game drive there.
For the first time ever we are flying up this year, I will miss the drive and the scenery, but not feeling shattered when we get there.
Have a good time
Just noticed , you get in at 7am. so you will be fine. But this info might be helpful to others.
Just back.......now a whole year to wait till August 2011! I cant bear it.
EVERY DAY IN EVERY WAY I LOVE KRUGER MORE AND MORE