Depending on it's use I wouldn't bother with too expensive model. We sold ours before we came as I think the maps were so expensive to buy, we were here for 3 yrs till we got another & the only reason we did was because Harvey Norman was selling one for under $100. The make is Uniden which I have never heard of but it does the job & helped us whilst we were on holiday to explore the area more.
Lindsey
NZ Expo London 13/10/07
OH Job interview/offer 17/10/07
EOI submitted 21/10/07
EOI selected 24/10/07
ITA handed in 03/12/07
Arrive Wellington 11/01/08