I just noticed that Mouser Electronics added Scenix ICs
(SX18 & SX28 [both DIP&SO]) US$5.11-5.78, SX Key Kit (US$149),
and the Seiko TCP/IP S7600 Chip (US$10.65) to their latest
catalog. (Seiko chip has operating voltage range of 2.4-3.6v btw.)
(Jeff wonders if his melabs.com EPIC In-Circuit 16F84 Adapter
[wonderful In Circuit design btw] will operate at 3 volts. Hmmm...)

 Also, Mouser now offers online ordering & online PDFs of quite a few
catalog pages. They didn't offer that the last time I checked...
which was probably a year ago or more so that may be old news to some.

 Jeff