Hello, Fault Reset.
Read the next thread
http://www.pcbsd.org/forums/viewtopic.php?t=833
It seems that the PCBSD installation create a swap space of 999 MB.
I've installed PCBSD on a 3 GB free space disk and finally I have only 180 MB
free space to work

.
We must have in mind that this is a beta release, so some things should be corrected.
Bye
(I'm sorry if my english is not too good)
Antonio