Hi Lasse
Youre probably one of the first Swedes I've seen in here... welcome, from a "neighbour" in Denmark!
Which CPU do you have? If its a FC-PGA, I think you have to choose the FOP, but a Duron or T-Bird can use both. I've seen a review saying that the taisol performed VERY well, and wasn't as noisy as the FOP38.