I use the aforementioned Sekonic and it offers almost everything I could ever want (a built in colour meter would be nice ) including the option of EV readings, which I am in the process of trying out.

Data on Sekonic L758D below
http://www.robertwhite.co.uk/product...1139&PT_ID=179

Data on Kenko KFM-2100 below
http://www.robertwhite.co.uk/product...1886&PT_ID=439