i was actually planning on driving it up!
i found the rta site (http://www.rta.nsw.gov.au/registration/rego_new.html)
it says:
"Second-hand vehicles currently or previously registered interstate
To register a second-hand vehicle that is currently or was previously registered interstate, you will need to attend a motor registry in person and provide:
Your interstate number plates – you’ll have to surrender your interstate plates before you’ll be given NSW plates."
So if that is the case i assume that i don't have to do anything on the victoria side?? RTA handles refunding my rego and accepting the vic numberplates??