S/H GPS for £100 - which to look for?

[squid]

Just seen one on ebay go for £120 + postage and it had V6. Not for me when Brand new with V9 comes at 179 Inc delivery

Many thanks to all for the information, I've gone from knowing nothing to knowing what I want

Going to order a new one in the morning with just the Powered Garmin bike mount for now.

I'll see how/where I want to fix it on then.

Cheers Rob