SatNav PDA's

[~YuckFou~]

I've started looking at SatNav for a new car. Very little research tells me that dedicated SatNav is not for me. There are units that piggy-back pda's, that even combined with the cost of the pda are cheaper and give better value, free PDA kinda thing.
I would want a Bluetooth compatible PDA, that would allow me to pick up email using a Bluetooth Mobile phone, check diary etc and synch to my laptop Outlook 2000.
So anyone got any suggestions? My first search found this bundle, I like the look of that PDA and the SatNav unit does what I need. I'm a complete PDA noob so any recommendations would be useful, or links to comparison sites.

 

[PR.]

Here is some more to look at...

http://www.expansys.com/d_gps.asp

 

[~YuckFou~]

OK, I've done a bit of research this morning, the Tom Tom SatNav unit looks like it does exactly what I need. Theres a demo of it here.
The Tom Tom is available for loads of PDA's:
- Ipaq 3600, 3700, 3800, 3900, 5400 series
- O2XDA
- HP Jornada 500 series
- Toshiba E330 & E740

So which PDA to get? I need 85MB for the full UK map apparently, but I assume I need more for apps etc?