Brainwavz M3
Head-direct RE0
Klipsch S4 (if you like bassy output)
Cash on delivery is pretty fine.
btw, I bought my M2 at 2.3k from lynx. But it was a deal of the day offer.
Burn-in is basically the practice of subjecting your iems to white, pink or for that matter any music for few hours initially so that your dynamic transducer based iems settle down.
It isn't a sureshot thing but many people seem to have improved the sound quality after burn in.
But you need not worry about burn in for M2, since they sound great out of the box.
Guys got my M2 today!! It roxx !!! Very good!! Thanks everyone for recommending M2!!