[twowheels]

Originally Posted by PeterT

Maybe look at the IBM M-10 keyboard --> http://pckeyboard.com/

I was going to suggest the same... the only thing that I can type on all day without getting tired is a Model M. I usually find them at thrift stores. The one I'm typing this on came from Goodwill for $6. They last FOREVER and feel awesome!

You can get NOS ones from here:

http://www.clickykeyboards.com/

...or newly manufactured ones (different company, same technology) from the link that Peter posted.