Air/Fule Ratio meter question.

[cory.langford@icbc.com (Cory Langford)]

So,  I need opinions as to a good meter to buy.  I want something that
might go into the three gauge panel.  I think I have seen VDO and K&N
selling meters that will fit.  Any other brands?  

  Anyone have any good or bad opinions on any specific brand?  


Also, any benefit of having a dedicated O2 sensor for the meter, or will
running it off the stock sensor be fine?  I figured I can always weld in
another sensor while I am doing the exhaust on the project.

Also, anyone have any experience with the Injector Duty Cycle meters? 
Just wondering how useful they are at telling when you need to upgrade
you injectors, and how easy they are to fit into the VW systems.

Thanks