Wow...
I've seen a few eps of this in the past, but this makes me really want to go watch all the others. I know you probably get this a lot, but you should really think of pitching this series to TV. This is just the sort of thing that would be "in" now. It's got the same familiar style yet a totally different plotline. The only thing I can think of which even comes close to matching this idea would be that Zatch Bell(sp?) crap and thats still very different.
Seriously, I think This would be a massive hit on TV with DVD's and action figures and all those fancy bells and whistles. You should really give it a shot. Worst thing that could happen is they reject you right? so why not :D