I have recently ordered a Bachmann Spectrum 2-10-0 Russian Decapod Susquehanna #2461 Item No: 81707.  It is described as DCC ready.  I need to buy a decoder.  I am planning to buy a Bachman decoder, but not sure if I need the one with the wire harness or the 8 pin plug.  Also the Bachman decoders are described as "Standard".  Is there such thing as a "Spectrum" decoder?  What decoder can someone recommend for me.  Also, how difficult will it be to install this decoder.

Thanks,

Jon