Best partitioning scheme for my HDD? Please advise.

[Joe Vender]

I have a 6120MB HDD which will be dedicated to FreeBSD 6.2. I intend to 
install the ports collection and also KDE. I will operate from the KDE 
environment using FreeBSD as a standalone desktop machine connected to the 
net via a dialup internet connection. What would be the best sizes for the 
disk partitions so that I don't run out of space on any of them while also 
leaving the maximum amount of space possible for the future software to be 
installed?
My partitions will be:
/
swap
/var
/tmp
/usr

as suggested using the auto option during slice creation.

I've found that if I use the default sizes that are chosen by the installer 
using the auto option, the /usr partition fills up before everything is 
installed and the installation fails. If I remember correctly, the auto 
feature sets the sizes around the following sizes for my HDD:
/				~500MB
swap			~600MB
/var				~1300MB
/tmp			~ 500MB
/usr				~3GB


I've played around with the sizes, reducing /var to around 350Mb, / to around 
256Mb, and /tmp to around 256Mb leaving the space gained to /usr. In this 
way, I got FreeBSD installed OK, but I'm considering installing it for a 
final time and using it exclusively for my desktop after testing various 
linuxes and FreeBSD and comparing them. So, I would like to get the sizes of 
FreeBSD's slices optimized. I'm sure there are plenty of people in the user 
community with a similar usage/size situation who can advise me.

Thanks,
Joe