I would love to buy the th900 fostex for the m8- wishful thinking atm though. The th600 is being released in a week though and is said to be sold for around $850 approx. Looking forward to reviews on that.
I'm re-cabling, balancing and modding my m100's in prep for the m8 arrival. Should be good.
Interesting; are you buying one? Where are you buying it from?