That's where I got my Okamiden copy from as well .
Price cuts don't last more than a few days there, so my advice to you is : don't wait too long. Otherwise, subscribe to get updated via email as soon as the game gets a new price cut, that's what I usually do.
However, know that you might have to pay additional customs fees when the package arrives in the post. I dunno how it works in the UK :/, but personally, in Belgium, sometimes I had to pay them and sometimes I didn't. They don't check each and every package in customs here. But still, customs taxes shouldn't exceed the difference between the price on Play-Asia and the price you see the game selling for in Europe.
( Edited 17.07.2011 14:24 by Kafei2006 )