I have just begun the process to get a one year work visa.  I have also just applied for 3 jobs at the zoo.  One is a behind the scenes guide for private groups, another is for a junior animal management officer (which sounds a lot like a keeper, but somehow it is different), and finally for a sound tech assistant at one of the shows.  Wish me luck and I will keep you updated on all of this.  I should know about everything within the month.