I have an old Dell Dimension L800CXE and I am planning on setting up a free LAMP for people who need some webspace.

My main question is for a server-admin somewhere.

What do you suggest I setup my harddrive partitions as?

System Specs
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CPU: 800 MHz i686 Celeron (Coppermine)
RAM: 512 MB SDRAM
HD: 40GB 7200RPM

External Specs
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5Mbps Internet Connection
Gigabit Ethernet

How should my partitioning schema go? Im planning on giving each user 15MB of Space with an FTP and SSH account.

OS Specs
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Gentoo 2004.1 is planned just because im am experienced with Gentoo compilation and know how to work with it.

I'd make a small / (500 MB or so), a /usr of about 6-8 GB depending on how many third party utils you plan to install, a large /var (8 GB or so, more if you think the MySQL databases will be big or you want lots of e-mail capacity), a 1-2 GB /tmp partition, and use the rest for /home (it may be good to split home directories across several partitions). I am assuming the WWW files will be in users' home dirs. I'm also assuming a small /boot partition. I've used this scheme before and it seems to do allright, YMMV.