I use (and am very pleased with) the Palm diptych here, but I got it from ANTonline for $64, less than Palm has right now. (At one point, Palm was $60, so check both!)

Full keyboard layout, function keys and all, and nearly full-pitch. Very solid build. Not real rigid when locked open for off-table use, but it works. Stand is too small for N800, but the N800 has a kickstand anyway, so just keep the stand stowed.

I highly recommend this one.