The NTK's a little different, obviously, since it's a tube mic. I really dig it -- very cool sound.
The way I tend to work is I would get the KSM now since it's available cheap, then I might wait for another day when maybe I found a similar deal for the NTK, and then I'd ebay the NT1000 and jump on that.
If you don't decide on the KSM, then email me --
snailinajar@yahoo.com before it's sold to someone else. I'm seriously just waiting on the right deal.