Picked up these beauties. The chub is strong with Metal Wolf Chaos.
I have the Japanese version of Guardian Heroes since release, but I kinda wish I had picked up the English translated one. If I recall I got a pretty good deal on the import. Recently I decided to buy the Xbox 360 version for $5, so at least I have that one in English. I also picked up Radiant Silvergun there too, which I own the Saturn version of, but I think the 360 release is the only translated version of that to exist. That's pretty cool, so I went for it. I also made the same mistake with Symphony of the Night, I bought the import so I could play it right away, but didn't follow up and get the US release when it came out. I'm sure it's not too cheap these days.
Metal Wolf Chaos is pretty cool, I played it a little some years ago but never thought about picking it up. Never did buy any original Xbox games, I have one - I think the only game I bought was Mech Assault so I could put xbmc on it. Kinda regret not picking up Shenmue 2 for it though. I do have Sneak King, which I believe also works on the original Xbox for some reason...
Anyway, nice pick ups! I love living vicariously through others.