[suicideneil]

Tough call man. I'd probably spend $300 on the MMM when its released, and spend the rest on some good batteries. The 2000kv motor the MMM will come with initially will be a blast on 4s, scream on 5s, and fly on 6s, though it may run somewhat warmer obviously. if you can wait a couple more months, I'd say that was a good route to take- just put your name down on the mailing list to findout when the MMM is ready for release and pre-order it (Joe Ford posted info somewhere, search his recent posts).