Thomas,

>If I understood that correct, the advantage of the pc-
>weasel is the ability to hardwarereset a system, a requirement for 
>remote systems. 

The whole point of the "Intel server platform" is that you can send
magic serial command sequences to an i8251 (or some such)
micro-controller on the motherboard. Those magic escape sequences let
you do anything you can do via the front-panel buttons -- even if the
CPU is busy in an interrupt loop.

Modulo some nontrivial issues like software which groks the
remote-management protocol; and number of cables (o an OS which groks
how the BIOS remaps the serial ports to account for the "remote frontpanel")
-- the two solutions have pretty much the same functionality.