Binatone 3.5" UK & Irfeland Sat Nav.
Just £34.99. There are also European mapping versions available for £39.99 and larger screened vesions (B430) for £49.99.
I got one of these whilst they were previously on sale and its great.
There's a previous expired thread here but they are back on sale today.
They run Win CE5, so if you own another Sat Nav software already, you can probably run it on the Binatone device as well.http://www.hotukdeals.com/item/655471/gps-sat-nav-refurbished-binatone-b3?p=8502068#post8502068
These are "Grade A" which means they are previous returns that have been completely checked over and are in "perfect, unmarked" condition.
Maplins are selling brand new ones for £69.99. They are also selling grade B ones (with cosmetic marks) for more than these grade A perfect ones....