I havent actully left yet not till the 25th then i am in Phuket for 5 days and then get to London on 1st of June.
What i am going to do is arrive with about 250pounds or so cash so that i can pay for my hostel / train etc when i first get off the plane and dont have to worry about finding an atm and from then on withraw a couple of hundred at a time so i can not carrring huge amounts but dont have to be withdrawing money every 5 mins. And i will prob use my credit card while in the UK also.
We won't be doing any winter sports, more just sightseeing. Heh, trying to decide where we want to spend Christmas and New Years. Most likely Christmas will be Budapest and Prague for New Years.
Make sure you spent some time in Germany and Austria before Christmas. (May I suggest Salzburg?) You should also leave enough flexibility in your travel plans that you can head up into the mountains (the Alps!) for a snowshoe hike or a toboggan run if snow comes as early as it did this year's winter season. For an Aussie tropical bird wintersports are half the fun of a Europe trip. (YMMV.)
Three of the countries we will be visiting (Croatia, Hungary and Prague) don't use the Euro so I'm assuming we buy those currencies here in Australia.
No, don't do this! Get cash from an ATM, pay with credit card or exchange cash for these countries in Euro-land. Getting these currencies in Oz would be foolish bc it would be very expensive.
BTW, Croatia is more of a summer destination. It is most famous for its beaches. Winter will def. be the off-season. I think I would fly Thessaloniki-Vienna for 40 EUR and travel from there to Budapest and Prague.