This site has great colour profiles (and some photos) of the different varients, and countries who used the 109:
http://www.xs4all.nl/~tozu/me109/index.htm
The Israeli Me 109s have always seemed rather incongruous
but then again they used a number of aircraft (this is an interesting site too)
http://www.spyflight.co.uk/iafvraf.htm 
