I'm over here at Murdoch University in Perth, the 'most isolated city on Earth' -- It really isn't that bad. I made the jump from Albany, NY --> Gainesville, FL --> Perth
Firstly, applying to Murdoch is done on a rolling basis (4 application cycles/year with 8 or so internationals taken per round whee!) and best of all, the application is free. You are required to do five years (technically 6 since you need to have a year of college under your belt now) but you can gain exemptions from some courses with a little bit of work and planning ahead (I have friends who got exempted from Biochemistry, Toxicology, and Nutrition). Tuition per year is $34,000AUD or $170,000AUD for the program. It is a fixed tuition rate for the first 3 years (but I hear it can rise slightly in the last two of the program). For comparison last I knew the debt load for Western University compared to Murdoch was about equal once you added living expenses into the loans.
The atmosphere around town is very relaxed and social. I'm very happy I made the jump across the pond. Living here can be a bit expensive compared to Florida (at least when I left, before inflation and gas pricing jumped), but it isn't too bad. Some stuff is ridiculously cheap, other stuff is expensive.
Classes here have been easy to get used to, very similar in format to lectures in schools in the US. What is different is their grading. You only need a 50% to pass and an 80% and up is an "A" (or HD/High Distinction here). You would however have to maintain a 2.1 GPA to maintain financial aid (US Stafford Loans + Grad Plus Loans) otherwise you need to secure private loans instead. Back to the grades... It can be hard to achieve an A over here... Basically instead of starting off with a 100% and marking you down, you start with a 0% and get marked up. I've received papers back that say "outstanding effort" and only received an 87% on it, with no comments as to what could have been done to get a higher mark. However once you get over the "Must get 90% or more on my work" feeling you realize that you still kicked ass on the paper and just to deal with it.
The skill sets you learn at any AVMA accredited school (probably most vet schools as well) are going to be roughly the same otherwise there would be no point in accreditation since they are meant to form a standard. What you will find is that some medicines and diseases are not going to be applicable to working back in the US, then again you just might not end up back in the US
but if you choose to go back, the transition should be relatively simple.
To get into Murdoch at least, the requirements aren't any 'easier' per se. They have different criteria to look at than do US schools. Murdoch looks at your age (mature-aged students seem to be looked upon better), experience, previous grades, letter of intent, recommendations. There is no GRE to worry about either. For a point of reference, I was kicked from Univ of FL with a dismal GPA (something like a 0.8). I took colleges at the local Community college and graduated with my AA ending with total college cumulative GPA of 2.9 I think (meaning it was inclusive of my crap UF GPA). With "core classes' that I took at the community college I earned the following Bio 1 - A, Bio 2 B+, Chem 1 - B+, Stats - C, Math - B, all while working full time and taking classes full time. I am also about 90% complete with a Bachelors in Business Management with a specialisation in Healthcare management to which I have a 3.55 GPA. I've also been working in the veterinary field for 12 years now in small animal and specialty practice. I also have volunteer hours in conservation medicine with fruit bats and marine mammals. Basically I am fairly sure that UF never would have given me so much as a glance and it would have taken a couple application cycles to get me into a US school due to my early school history. As a bonus for me anyhow, I was able to shave two years of pre-reqs for the US schools since Murdoch did not require them. Hell I probably didn't have to take the courses I did but it did show that I can succeed in University.
Oh, and getting your dog to Australia is a bit expensive. One dog/pet can range anywhere from $2k-$5k once it is all said and done. If you do everything correctly they only have to spend one month in quarantine over here. As a side note, please at all costs AVOID International Pet Transport aka IPTLAX.com. They ended botching the import of my roomates 3 dogs such that they would either be in quarantine for 5 months, or stay in the US for 4 months longer than their owner. Short version: They provided no assistance and did not ask for required tests to be performed. 1 month before leaving this was noticed and they asked for more money to get things processed quicker and informed them of increased quarantine time. Because nothing had actually been done on their behalf they requested all $8k to be refunded to them. At this point no money has been returned as of yet, 6 months later and it is most likely going to court, but I digress.