(This is the RED one)
With 20% off all gaming at Tesco this seems to be the best price around for the Sony (genuine) Red dualshock wireless controller. Hard to find it for this price ever. Amazon.co.uk Amazon Marketplace 41.79 (cheapest delivered) at time of posting.
None of the non-genuine controllers seem to come close in terms of precision etc. according to reviews.
Also Tesco clubcard double points and Quidco (3% for Tesco Direct) can bring the actual cost down to about £27.30
I've already posted the Black one, so MODS I was not sure whether this Red one should be a separate deal or not. Hope have not been posted already- I searched! (Also thanks geoyakult for highlighting the deal).