[jrockway]

I realise using arrow keys is heresy to a certain subset of the programming community, but I've been using them for decades and it's hard to give them up.

Then buy a RealForce or the Japanese HHKB Professional instead:

http://www.g-ray.co.uk/pictures/Realforce87U2b.jpg

http://www.pfu.fujitsu.com/hhkeyboard/lineup/pdkb420b.html

FWIW, I use the arrows once in a while (not everything supports Emacs-style keybindings, after all, especially on Windows), and I like the HHKB's approach. Less hand movement than normal arrow keys.

in a strange inversion of the usual hierarchy, includes an extra Fn key on the left and an inverted-T arrow-key cluster

"Lite" refers to the price, not the number of keys. Topre keyswitches are not cheap. A rubber membrane is.