What are the best PS3 games out at the moment?

Any recommendations on current titles as I got some HMV vouchers to spend. Got GT5 and Dead Space 2 but apart from that I cant think of any other games. Thinking of Yakuza 4 as I'm a fan but not willing to fork out �40 for it! (rather pick it up later) What about the new Motorstorm coming out??? Any help would be great!! thanks guys