If you're planning to, or have already invested in additional Carl Zeiss lenses for your Sony A100, why then are you still considering switching camps to Nikon? Wouldn't the lens investment be money down the drain in this case? Or maybe you are passing the Sony to someone else?
If you want to change, change earlier before you invested into too many lens.
For Nikon, there are plenty of good lens, accurate flash systems and have full-frame body too. I find Nikon's bodies very well built and durable. I believe more people are using Nikon than Sony, so can easily find Nikonians to talk to, to share and exchange tips on their systems.
Woah there... Try to type in a language that all of us can understand. We use plain ENGLISH in this forum. Some of the stuff you type, I don't have a clue. Not all of us on clubsnap belong to the sms generation, you know what I mean?
For example, what is "i knew it that Sony has it in it cox of minolta..." ??
There are 3 "it"'s in there...
It's "upcoming", not "upcummin' ", which is actually less efficient since it requires 1 additional keystroke (the apostrophe).