Turning my PDA into a satnav?

[N Dentressangle]

I have a Dell Axim X30 PDA from work. Is it worth adding satnav stuff to this for the odd time I would use a satnav?

What would I need exactly to buy for my Axim to make it do satnav things? I'm guessing Ebay is the place? Please bear with me on the tecknollygee - digital watches still make me gasp a little...

[N Dentressangle]

Thanks guys - I had been thinking Tomtom was the only choice, but that gives me other ideas!