I spent just a few hours in Edinburgh in 2006. My wife was giving a paper at a conference at Strathclyde University in Glasgow, and we went by train and spent a few hours in Edinburgh. Far, far too short a time, but still loved it. (I'm a single malt man).
We had to return in the afternoon because we were flying to Pisa (budget airline) for two weeks in Italy (Florence, Cinque Terre, Venice and Rome). Photos at:
http://gallery.me.com/pauldickinsonif anyone wants to be bored by holiday snapshots!