These 2 much more refined people are my favorite aunt and my late uncle.
 

The picture is of the old town Gamla Stan.  I lived in Stockholm for 6 happy (COLD!) months.  A beautiful city with loads of pretty girls!  The people are very friendly once you've met them but they're a lot easier to meet in the summer than in the winter.  Expensive if you like a beer!  The liveliest area for bars is the Stureplan.  The pubs get really busy in the weekend and most will have queues and you'll have to pay to hang up your coat, pay to get in and pay a fortune for a beer!  I was there in the winter and every Friday/Saturday night I saw queues of approx. an hour long and it was bloody freezing (tough people the Swede's)!  Because the Swedish government is anti alcohol, bars have only sprung up over the last 7 years or so.  There are more foreign style pubs than Swedish ones.  The Swedish pub culture is realatively new, instead you have mostly copies of English, Scottish, Irish etc pubs.  The Swedes are a hardy bunch and can survive the long waits in the freezing cold for a beer if you go out after 10pm on a Friday or Saturday night!  The Stur Kompagniet (on the Stureplan) is one of my favorite dance/young scene.  If you want a somewhat quieter experince without the queueing then try my favorite, the LOFT (above Kungsgatan) is a great Irish bar with a Dutch owner so you get the trendy Irish pub with a few Dutch beers as well.  There is also a great coffee shop, Wayne's on Kungsgatan.  They have lots of different types of coffee, my favorite is the Cafe au lait (coffee made with milk instead of water).  You'll find lots of students here.  There is a youth hostel on an old sailing boat in the harbour.  This books up early in the summer.  The Vasa museum is well worth seeing.  It's the oldest intact shipwreck in the world.  It sank in the 1600's.  The metro system is excellent and the city buzzes with life the whole summer long.  The Swedes really go for it in the summer.  All the bars & restaurants have tables outside.  It gets really wierd in the summer cos it doesn't really get dark at night.  The Swedes play a lot of sport especially in the summer.  They tend to do a lot more water sport in the summer (mainly cos the water isn't frozen!) and there is a Stockholm Water Festival in August each year.
Johan's SOS Big Band Homepage

Recommended bar! try also the Loft Irish Bar on Kungsgatan