Fellow Mongers,
Updating swede3's recent post, I just visited the Kallio district and have a new report to add.
All you need to do is go by public transportation or taxi to Helsinginkatu (apparently Helsinki Street), which is the main drag in this section. Just walk on that street or any of the many side streets and you will see at least a dozen Thai Hieronta (I guess that means massage) places. I walked into a few before I found a decent looking woman, at least by my standards. A one hour massage costs 40 euros, half hour 20. Don't bother with paying for an hour if all you want is to get a nice blow job and laid as the finale. You will get a decent massage, then she'll probably ask what else you want, and if it's the works she will ask for 120 euros. I bargained, but not too hard, and got it for 100. I had a strong feeling that 80 was very possible, but I was in an expansive mood and didn't want to argue too much. Still 120 total isn't bad for what you get.
One note of caution however is that most of these places seem to close at 9 or 10, so this can be your appetizer before heading off to SOHO or Alcatraz. This way you can get rid of the "easy" one.
Good hunting,
Exec