It's 510 euros here which I think is fairly priced compared to the $499 in the states. This is for the 1.25GHz CPU. The 1.42GHz is priced at 615 euros. You can these with an extra 35 euros:
Greek MacOS X 10.3
Greek Cruiser (Maps of Greece and stuff)
Greek fonts (great collection of Greek fonts)
All fairly priced if you ask me.
EDIT: It's also available in the Appleshop in Athens. You don't have to place orders and stuff.