As a Finn I must make the obvious question: why Stockholm as you could make it to Helsinki as well?
And if the 'downers are scarce in Stockholm you will find a host of them in Helsinki: Spawn, Lommy, Volo, Aganzir, A Little Green...
So just give us your schedual and we'll try to arrange you people and things to see. And if you happen to need a place to overnight I might easily accomodate you so that you could save that money to spend somewhere else...
And even the famous Michael Jackson (not the singer!) thought Finland's pubs were supreme!