A few questions about FreeBSD

[Manish Jain]

Hi,

I am writing a doc about FreeBSD/Unix.

There are a few questions I wish to be get the answers for.

1) As a desktop system, is it needed to have a swap partition at all ? 
My system is AMD Athlon X2 270 with 8 GB DDR3 RAM and no swap, running 
KDE4. The box works wonderfully for me.

Is swap advisable for 8 GB ? 4 GB ? 2GB RAM ?

Less than that much is essentially unheard of nowadays.

2) Since I do not use video-chat, I needed some tips about video-chat 
software that works well under FreeBSD. Would that be Jitsi ? Skype ?

Thanks for any information.
Manish Jain