Before I go to sweden, I think I want to get a Nodal Ninja.
I'll likely have a Sigma 12-24mm when I go as well for my Canon EOS 30D and Canon EOS 500N film camera, though I'd like to use it with longer lenses too, such as my 50mm G.Zuiko f/1.4 etc.
The one Im looking at from the Australian supplier is..
"Nodal Ninja 3 MKII Complete Cased Kit Panorama Head "
"Supplied in Kit
Includes: Hard Case, Detent Rings 0/15, 18/20, 25.7/36, 45/60 Small Parts Kit, Rail Stops, 1/4"to3/8" thread adaptor and N-CP1 Camera Plate."
$299 AUD + GST (we're on 0.95 cents to the US dollar atm).
There's a whole bunch of other stuff on there too - http://nodalninja.com.au/products/
For example of what kind of things Id use it for the follow is handheld 28mm on 30D, 58 shots