WTB: T61p 15.4" 9 Cell Battery

[WillT.]

I'm looking for a genuine Lenovo 9 cell battery for my 15.4" T61p. Needs to be in good overall health (green) and can hold at least ~3 hours worth of a charge. Would prefer one with Panasonic cells for longevity's sake. I'm not looking to spend too much since it will see somewhat limited use, so a Sony or Sanyo one can also work as long as it's in good condition and its charge life can be verified.

Thanks!