[plug] Processor Memory Usage

[Tim White]

I know that it's in there somewhere but I having touble finding it.
I am trying to find out which processes are using the most memory and swap.
I know that it is probably just a few switches for 'ps'
The reason being is that after leaving this workstation of for almost 2 
days the swap is getting rather full. Under normal usage with frequent 
reboots it only gets around 10% used, it as almost at 50%. The memory 
always sits around 100% due to me only having 192Mb.
Also is it possible that this is caused by shared librarys sitting in 
memory? if so how can I unload them?
Thanks
Tim

p.s. Does any one know how to get Thunderbird to use a dictionary? I 
have 0.7.1 and it doesn't spell check with a dictionary. It just says 
everything is spelt right