Would you do it? Know anyone that has? Many websites around that orgnaise it, such as
http://www.aussiehouseswap.com.au/
I'd give it a shot i reckon. Your house only sits there when you're away.
Swapping somewhere in Europe or the US for a few months would be the go. Somehwere where you could base yourself from.
save plenty of $'s
would be good with a young family etc.