if you have eDonkey or eMule you can get the first 5 volumes from http://www.mangareactor.tk

I've read the first four and it looks like the manga will turn out a little differently from the anime (only finished the anime myself yesterday) as it progresses...I could be wrong though...I won't say any more in case it'd be deemed a spoiler. Personally I preferred the anime to what I've read of the manga so far...but the manga is still cool.