tomtom one or Navman iCN520

tomtom one or Mavmanlooking at getting a new sat nav system any ideas on which is best, currently use tomtom 5 on a pda but want a dedicated satnav as giving pda to my dad

Hi kithough
i just bought a tomtom one on tuesday this week and couldnt be happier with it. it has an easy to use menu and loads of great features like speed cameras, traffic updates etc! its made my days work so much easier
i dont have any info on the navman but i hope this helps
Rich