M6 TTL compatable flashes

[colyn]

I had planned to buy a black MP but the dealer tried to gig me by upping the price to over 4 g's for the body only so instead I went elsewhere and found a like new M6 TTL .085 with black Summicron for less than $1500.
I decided to wait for a flash so I could determine which would be the best flash for my needs.
Any suggestions on a compatable flash? If possible one with bounce capabilities.

 

[SDK]

The Metz 44 MZ-2 with is nice, simple and has bounce and supports variable focal lengths from 28-105mm. The 54 MZ-3 and 54 MZ-4i are also good, have bounce and are more powerful but more complex, with zoom of 24-105mm. These Metz flashes need the SCA 3502 adapter shoe for Leica TTL cameras.

Leica's SF20 and SF24D are compact TTL flashes without bounce.