if you're a member of the ECA it says on their site you get a 10% discount. don't know if thats true or not. otherwise I dont think there are any deals for it, since you can only get them from their site.
but im also considering an a40 for my 360, but it comes to nearly $300 cause of 50$ shipping to Canada which is ridiculous really. But if I do buy it I know I won't be disappointed