Oh you'll love having a GPS Martin!!!
I have a Vista Cx and City Navigator Europe maps. Really excellent, and the only thing that I dislike about it is that it sometimes loses signal in urban canyons. The HCx model won't have that problem as it has the high sensitivity receiver chipset.
I love the points of interest database, it saved my bacon a few times now. Once at the Berlin marathon when the hostel stuffed up our reservation. I used the POI database to look up all the nearest hotels, get their phone numbers and call for spaces. You can imagine how few rooms were available before the marathon with something like 150,000 extra visitors to the city.