Inline with the previous post, everyone who's flown a KingAir loves them, they're just like a big Baron. On another note my first twin turbine was the metro, for me the transistion was easy, first right hand seat, then left. Aircraft speed really wasn't an issue and despite what you might think (a bigger aircraft) they're not all that heavy on the controls. Fortunately with most turbines they're a hell of a lot more forgiving than a piston engines; accordingly can be supplying max pwr one minute, idle the next.
Last I heard a company running metro's, does endorsements in brisbane, but be careful (depending what the chief is feeling like on the day will determine how proficient your endorsement will be.)
Cheers