Hi Rune, I am very keen to test the CZ 16-80mm, but it keeps getting delayed! I hope to test it soon though. Have you seen it yet?
I have also tested the Sony 75-300mm lens here:
And our most recent lens test was of Pentax models, here:
http://www.cameralabs.com/reviews/Penta ... 70mm_lens/
So it's not all Nikon and Canon! But I agree there is a bias towards the Nikon D80 and the 18-200mm in the forum at the moment simply because it is such a popular and successful combination - and we have several forum members who are keen owners of them. So it's up to you guys with other cameras to readdress the balance and tell us about your equipment and why it's the best!
PS - the Nikkor 18-200mm was tested with the Sigma and Tamron 18-200mm because at the time they were the only three 18-200mms on the market. I know there's a KM 18-200mm - and now a Sony 18-200mm - but I believe they are in fact rebranded Sigma 18-200s.