The new Tom Tom One's with the Sirf III chipsets can be had for £224 online if you google it. Seems a bargain if you are considering spending over a £100 on route planning software alone. Goes from startup to position fix in about 12 seconds every time I try it. The ability to pocket it and use it on foot around cities is a killer app in my opinion. It made a recent weekend in London an absolute breeze.
Cheers
WWW