I've yet to pick up Killzone 3 despite loving the beta, but with the Playstation Network down and my PS3 excelling as a superb dust-collector, I don't see myself purchasing it in the short term future, at least. However, when PSN is back up and running and I've run a cloth across the lacquered shell of that glorified blu-ray player, I might check in on Game's offer for Killzone 3. £19.99, saving you almost two quid on ShopTo's next best offer. Brendan has the scoop on the game, check out his review above.
Massive thanks to Kodoku for bringing this to our attention over at HUKD