I'm seconding the Selle Italia SLR. I've had two now and they are the best saddle I have ever had. I've gone through quite a few - ranging from the classic Flite to Bontragers to Selle San Marcos and tried a Terry for a while. None fit me like the SLR does.

If you find you have a saddle that feels like you're sitting on a pole after a while (meaning the saddle has a raised middle right down the center) then you want a flatter saddle.

The SLR, contrary to what it looks like is great: it's flat, minimally padded (less chafe, etc.) and is remarkably comfortable. It flexes enough to support you and doesn't get in the way like other saddles do.

I do however, want to find myself one of those Storikas.