Central Asia and Caucasus
I just came back from a long and succesful motorcycle trip from Uzbekistan to Italy one month ago.
I wrote a detailed report of my trip, with all the practical info, at the following link:
unfortunately for you, it's in italian, but you can try to translate it through Altavista or something similar.
As soon as I have time, I'll translate it for Horizons Unlimited BB.
Anyway, if you have any specific question, I'm happy to help you.