the whole place is amazing, try and get directions at the hartenstein hotel, for the westerbouwing heights! it was captured and held by the border regt before the germans used flamethrowers on them. the view is fantastic as you can see down the rhine towards arnhem, also where the paras escaped across the river. i was on a tour there last year and we were taken around the whole place by adrian groenweg(tour guide). well worth a visit.
To get to all the must sees and do's in the right atmosphere i suggest to do the yearly held Airborne march which will lead you past all the landmarks like Oosterbeek town,Hartenstein,Westerbouwing,the war cemetary etc.
About 2 weeks after the march there is the remembrance jump at Ginkel Heath (Ginkelse Heide). Here's some footage of it that i made 2 years ago. It's not all great filmed,but feck it i'm not Jan de Bont
We rented bikes - and saw a lot more for travelling this way; it also gave us a much better sense of the geography and an understanding of the distances involved. We visited the 1st British Airborne cemetary and the Air Despatchers Memorial at Oosterbeek , which was an incredibly moving experience and then cycled the route that Frost had taken, from the Hartenstein Hotel along the river to the bridge (we navigated using a map in a copy of 'A Bridge Too Far' I'd taken out with me).
It was very interesting and rewarding, more so I think, for not being stuck in a car or ferried around in minibus. I would also recommend a trip up to the top of the tower in the central church in town, the views are worth it.
Enjoy your trip - the lads who are resting there will be glad you made the effort to visit.