Actually, I checked it out when you mentioned it the first time. I'm on episode seven...ish at the moment. It does kind of use a few of those anime cliches (*cough cough ill-advised english, special moves-based combat, weak points (Etc etc etc) some of those really old anime expressions that I don't seem to see too much any more*) but it's an enjoyable series, and, well, I usually stick to manga and I'm bothering with the anime. That says something, right?
ANYWAYS, THE POINT IS: I'm watching it, I'm liking it, I'll probably watch it to the end. THANK YOU FOR INTRODUCING ME THIS, GRAFIKAL.
And as for OVA's and such, Try searching around. Wikipedia probably would mention something like that - Try the manga too if you want more, it'll more likely than not have more to it. Mangafox should have it.
(WARNING:IN THE MANGA GINJI LOOKS LESS MANLY. IT MAY NOT BE THE SAME.)