I am soon to start a sales job and want to purchase a PDA with TomTom 3 (with a GPS unit + car kit) as I will be doing a fair amount of travelling.

Although the SatNav will be one of the main features, I will also use it for keeping track of my appointments, playing a few games, browsing the internet, listening to mp3's and playing some movies if possible.

The most important thing to me is a high quality screen!

So, i'm after your recomendations really.

I have been looking at the iPaq 4150 and 5550, both of which get good reviews.

Thanks for any help.