I started with Praktica PB system with Zeiss origin.
Then I switch to Rolleiflex SL2000F with the Zeiss lenses for many years.
http://www.fuwen.net/index.php?option=com_content&task=blogcategory&id=34&Itemid=84
I like electronic body so only extensively using the SL2000F.
Only recently I switch to Contax SLR system more for the better lens programme. I am still keeping one set of the Rollei SLR lenses.
Also I am using the ZM serires of Zeiss lenses with the Rollei 35RF (I could have been using the Bessa R2 but I am a Rollei supporter and also for that 40mm Sonnar).
http://www.fuwen.net/index.php?option=com_content&task=blogcategory&id=54&Itemid=115
For medium format I have the SL66 and the SL66E and few lenses but do not use them extensively.
I really like the look of the Rollesi HFT coating, the reddish brown colour. Contax T* is the boring green / blue. Sorry many a time I buy thing for the look. : D
Sad that Rollei is not doing so well and I think they are moving away from Zeiss already.
In those Rollei days I travelled with SL2000F and 6-7 lense from fisheye to 200mm, with a Voigtlander VSL-3E as back up. Have not been travelling after having 4 young kids. Not sure by the time I am able to do travel again can I managed the same with the Contaxes. But nevermind the range finder 35RF will then be there. Age is catching up.