ShopTo.net have this up and ready to pre-order for only £29.84!
http://www.shopto.net/PS3/VIDEO%20GAMES/PS3AG03-Agarest%20Generations%20of%20War%20Zero%20Collecto rs%20Edition.html
GAME / Gamestation have yet to add this game to their system, and is also not on the HMV database either. Expect these to follow shortly