Getting as much system info possible.

[Malte Brill]

Hi List,

inspired by the "erratic screen updates (was Slow screen lock/unlock)" 
Thread I´m starting a new one. :-)

I would like to find as much information on the machine a stack runs on 
as possible. I´m especially interested in:

-amount of RAM
-processor type
-video card type
-video card Ram
-free HD space

I *guess* it should be possible to retrieve that data using the shell 
on OsX / Linux / Unix and XP, but I have not too many ideas how to go 
about it.
The first wild guess for OsX would be to

get shell(dmesg) and walk through each line of it to retrieve 
information. Any thoughts for the other platforms and a better way for 
OsX?

Cheers,

Malte