Whoah didn't know it had a disc release... Is it in English?

Yup. I had to struggle a lot to find it. Disc version was released only in Japan.

Well then I might just have to get myself a copy. $40 on ebay it seems, so not too bad. Sorry just to clarify, definately in english?

It has both English and Japanese option. Check in the item description about language (language: English and Japanese) at ebay. Because there is another version that is only Japanese. It cost me around $50 when I got it. It will be great to have it on retail form.

I have Okami on the PlayStation 2. I heard that it's a great game.

Retail version is Japan / Asia only. You can buy it from psn at $10. But I prefer retail version.