Sooooo.... Two of my mates are currently on a 1 year Working/Holiday visa in Australia,they are planning a 2 month jaunt around Asia and then plan to head back to Melbourne to work again and have asked me to come join them in 3 weeks time. This hasn't left me long to save up but i reckon i can to get around the £3500 mark.

This is going to have to include...
Flights to Vietnam and then to Melbourne
12 month Australia Visa
Spending money in Asia and then some to keep me going while i find a job in Australia.

Does anyone who has done anything like this before think this kind of budget is viable or am i being too ambitious?
Also what sites are the best for cheap fares to Vietnam? I am currently in Yorkshire but would be willing to fly from anywhere in England really but everytime I start looking for flights I end up with about 25 different tabs open and just quit the whole process....

Any help/info would be appreciated....