Thanks for a good answer Andrew.
Befor writing I had visited the PDAWin site.
I had also seen the Dell Axim at dell.co.uk where you can buy the 300mhz version for £185.
The cradle/recharger which connects via DC (extra £25) .
Delivery on that is £9.50
And as you suggest the PDA-ir device for £27 + £5p+p)
Software about £10
Total: £261.50
This does seem a good deal considering the cheapest ProntoPro I found was on Ebay second hand for £500.
I own the original B&W 1MB Pronto which has done me proud but do want to go colour.
Thanks Andrew for your help, you have definatley given me something to think over.

Thanks as well Stricko, I have downloaded Tonto as well as the latest Pronto Edit.