Please do let us know what you end up deciding on... I'm with Kwaka and reckon you should give it a couple of days and come up with something you think suits him. Good luck!
or you could go with something classic. Bond, James Bond....(thinking- Diamonds are Forever)
(I nearly said Pussy Galore- coz diamonds are a girls best friend )
For the Murray Darling- what about sometthing outta Peter Pan? Micheal for instance (Micheal Darling- one of Wendys brothers)
i went with houdini after him escaping and cauing me to drop a 2 kilo lid on my head while tryin to catch him lol the best way to name them is by how they act i reckon anyways lol