I think this will be store specific but worth checking if you're in the market for one of these simultaneous dual band wireless-n routers.
PC World (Fosse Park, Leicester) had these on the shelf discounted to £125 from the normal £139 price.
These are the recently updated version (MC340B/A) with the revised antenna design to give better range and performance. These are priced at £139 online, where they are also clearing the previous dual band version (MB763B/A) for £117 (previously reduced to £125).
I suspect someone left the previous £125 discount pricing on the shelves before putting out the latest versions!
They scan at £139 at the till but I pointed out that the price was £125 on the shelves and they manually overrode it. Anyway it's a nice 10% discount on the normal price so I'm happy :)