Now for some suggestions of places to visit:
An excellent start are the "100 things to do in Scotland before you die" from the Sunday Herald:
http://www.sundayherald.com/40798(And my take on it:
http://www.ministryofpropaganda.co.uk/2004...0328-64things.shtml )
I'm sure you'll find quite a few things on it.
Then my favourites:
* I doubt you'll have enough time to make it, but I simply have to recommend Islay. Shameless plug: I also have some pages about it, to be found here:
http://www.armin-grewe.com/islay/islay.htm "Problem" is that the shortest ferry crossing is 2hrs, from Oban (I think someone suggested that) it will take far longer. So this depends on how much time you'll spend elsewhere. And the best distillery tour I know of is probably at Bruichladdich.
* Glen Coe has been mentioned several times, so I'll mention it as well.
* Glen Affric takes a while to get to, but is absolutely fantastic. I'd say plan at least a full day to visit it.
* I guess you'll go to Skye (be prepared for lots of other Germans, I've had occasions where every third car I met had German number plates ;-)). Trotternish is great, the Old Man of Storr one of the standard walks. On a clear day drive out to Elgin for the view of the Cuillins, if possible also the boat trip to Loch Coruisk (Don't bother on a rainy day)
* The beaches of Lewis. Probably among the best in the world. Enough said.
* I don't know Edinburgh very well, in a way it's too polished for me. But the view from Arthur's Seat is very nice. And the Museum of Scotland for a rainy day.
* I somehow prefer Glasgow as a city, to me it has a less polished feel. A lot of people claim Glasgow is ugly. They are probably right, if you don't know where to go. If you do it has some fantastic places. Should you happen to go to Glasgow I would recommend visiting a few places on the Mackintosh (no, not the computer ;-)) trail. Another shameless plug:
http://www.armin-grewe.com/crm/crm.htm* For some geeky fun: The Falkirk Wheel and the famous Forth Rail Bridge. Also the West Highland Railway (Steam Train) from Fort William to Mallaig
* Isle of Mull and the long way to get there (instead of the ferry from Oban): From Mallaig (should you take the ferry from Skye) through Sunart and/or Ardnamurchan (with lots of single track roads)
* Cairngorm. Walking up to the summit and around. Or anywhere in the Cairngorms
* Loch Fyne Oysters in Argyll for great food. And allegedly the place where Gordon Brown and John Prescott discussed Tony Blair's successor.
And where I wouldn't bother going to:
* Fort William except for staying over night (handy for the steam train and Ben/Glen Nevis)
* Eilean Donan Castle from the inside. Take your pictures and enjoy the view from the outside though.
* Most of the Royal Mile in Edinburgh. Tourist trap par excellence and choc-a-bloc with tourists during the summer
* The furnicular up Cairngorm. You won't be able to get out when you take it.
* The various tourist trap shops you'll find in various places. Tartan, shortbread and other things vastly overpriced. I'm sure you'll recognise them after you fell for the first one.
Finally for another holiday (you won't have enough time to get there this time):
* Orkney for the historic sites
* Shetland for the landscape and remoteness
That's what comes to mind for now, if I can think of anything else I'll come back.
