So many recorders, so little time.
Just read on Harmony Central of the launch of 2 more recorders.

One by Boss the BR600
http://namm.harmony-central.com/WNAMM06/Content/Boss/PR/BR-600.html
(it's aimed more at musicians, but I'm sure we could find a use for it)
uses 6 AA batteries

One by Edirol the R09
http://namm.harmony-central.com/WNAMM06/Content/Edirol/PR/R-09.html
uses 2 AA batteries

Both seem to be retailing online for US$399...