Mate, vet's all well and good, but we don't learn anything really about reptiles (except for a few units at the very end of 4th year I think)...
If you're mad keen on animals definitely go for vet mate, I can't think of a job that helps them out more! Not to mention it is heaps and heaps of fun. With vet you can prtty much treat everything if you're willing to always be learning new stuff. Work hard for it, it's definitely worth it.
Kirby: 15000 a year to study BSc...? Dunno where you were studying it, but I only paid about 12.. All uni courses are expensive though.
Also, 10000s of people do BSc degrees around Australia and a huge proportion of them want to do zoology.. It's really hard to get a half-decent job. Even research is hard to come by with so many people gunning for it. Go a cut higher and get into vet where the jobs are more 'available'. Especially if you happen to be male

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Lozza: high paid? Vets? ...hmmm. If only.