[htfy96]

Or if you want just some minor additions, try Sun Oracle Type-7 keyboard which has ~10 keys (including Copy, Paste, Undo, Cut - perfect for Stackoverflow-oriented programming) on the left

https://en.m.wikipedia.org/wiki/File:Sun_Oracle_type-7_keybo...

[kps]

Sun keyboards are mushy, though. Unicomp has 122-key Model M keyboards with 10 keys on the left and 24 function keys at the top.

[m463]

wow, brings back memories. I never had an oracle version though. I remember being very happy when sun came out with a USB version of their keyboard so I could use it elsewhere. (previous versions had a sun connector)