So.. aside from the one working thinkpad I have, I have a 600x with a few accessories..

Not sure on the memory, but I'm estimating 512mb
Includes a wireless pcmcia card. Need drivers for xp use
Includes a pcmcia ethernet card with cable adapter. Works in xp without drivers
Includes an external floppy drive in the little external dock thingy
Comes with a brand new cmos installed
Also includes a docking station, with two keys
and for the heck of it, a pretty darn new, just unboxed power cable

It does not, however, include a battery. I removed the battery cells from the battery pack so that it can stay in without there being a hole on the machine, so the battery pack is there, just no batteries in it.

How much do you think this could fetch?

I sold something very similar a couple of weeks ago for $60 on Craigslist. Nobody wanted it here though.

I think your best bet is in $40-60 range.