I am willing to trade any of the legendies on my Diamond for a Mew. Here is a list of them.
Giratina ; Level 70
Dialga ; Level 59
Kyogre ; Level 45
Articuno ; Level 50
Mesprit ; Level 52
Oh, I see....v__v;; I'll just have to wait then since it has been part of battles on Sapphire.