Darned Scot;-)
Sophie, just in general and from what I hear, there seems to be quite a cruel Survival of the Fittest attitude amongst the nightclub bouncers, at least around Stureplan in Stockholm (see below.) I suspect it's easier to get in if you're too young than if you're too ugly or too black or too handicapped...
This is an old article (it's from 2006) and these things seem to change very quickly don't they, but what I can tell you is that if you come to Stockholm it's still true that the area around Stureplan is the place to go if you're looking for the Daddy's credit card crowd...
http://www.10best.com...tlife/best-nightlife/ Some info about other cities as well, in ^^that article.
...and if you're not, go to the part of town called SoFo, on Södermalm.
Debaser is the place to be if music is your thing
http://www.debaser.se/ So sorry their site isn't in English but if you scroll to the bottom of the page, the first three addresses (Slussen, Medis and Humlegården) are in Stockholm, and Malmö is in... erm, Malmö. (In the southernmost part of Sweden.) Debaser Slussen and Debaser Medis are both in the aforementioned part of town Södermalm, where things are a bit more layback and bohemian than they are around Stureplan.
This info seems quite up-to-date
http://beta.stockholm.../Dine/Tips/Whats-hot/
If you have anything more specific in mind that you'd like me to find out I'll try to help but it'll have to be during this weekend