I've not been able to go through the computers that are in the office yet to see if any of them can be fixed and used, but even if they can it can't hurt to have a spare or even a better one from SL. Here are my suggested guidelines for what computers we are interested in:
It must be able to run Ubuntu well. This means 1GHz processor and 512MB RAM, but that's an absolute minimum. Ideally (and really, for an office PC that the admins are gonna have to use every day) we'd want it to be closer to 2GHz+ processor and 1GB RAM.
It must be working. If the person donating us a computer can vouch that it is working that's okay. But if they don't know or they say it's not working then we don't want it. I don't think we want to collect broken computers for parts, unless we're going to have a space for it and a system like I outlined elsewhere. Also if you find one on the street then take it home and test if first, before bringing it into the forest.
It must have a working power supply. I know that you can buy replacement power supplies or take one out of another computer, but I think replacing power supplies is dodgy. There seems to be a big difference between a shit power supply that will fail and a good one that will last. A bad power supply can damage other parts of the computer. Also if the computer has no power supply then we can't turn it one to see if it works, until we get a replacement power supply for it. I think we want computers that come with their own reliable power supply.
It must have memory. Without memory we should at least be able to turn on the computer and see if it POSTs okay, but replacing memory is a pain because you've got to seek out the right kind of memory for the motherboard in question. Personally, I'm not able to identify memory sticks with my eyes, so taking memory sticks out of old computers and putting them in a new one would be kind of a pain.
It's okay if it doesn't have a hard drive. Without a hard drive we can still turn the computer on, see if it POSTs, and boot a live CD or USB to run Ubuntu's system tests and memtest and cpuburn. Hard drives are simple and easy to replace.
Also, we can easily supply monitors, keyboard and mice etc.
I've had it with you. If I had an image of a laser gun I would absolutely position it right here in my hand...
Ha! I have a real laser absolutely positioned in my hand!