Different Z60M power adapters

[jiantbrane]

Does anyone know if there are ANY power adapters, made by any company, besides the default 90W adapter that are compatible with the Z60M? The sales rep told me that none of the otherIBM/Lenovo units are compatible; Kensington's Web site states that they do not offer any compatible units, and the Targus Web site does not list it as an option.

Thanks,
Howie