I have decided to upgrade the server here. So, I bought a box from PB Technologies, with an 2.5G Pentium CPU, 80GB of disk, and 512MB of memory. Alas, when started the installation process it kept hanging when it tried to access the hard disk. The last message on the screen was:
ata0: READ command timeout
A quick search on the Internet reveals that the SiS651 controller used on this particular ASUS motherboard doesn't quiet work well with FreeBSD. The only option is to disable DMA on the hard disk driver (which works), but this slows the drive's performance somewhat.
So, the system is working (albeit slowly) and now I'm into installing all the software I need (Apache, etc).