The motherboard takes 72 pin SIMMs. The motherboard is very similar (but not identical) to this: http://www.motherboard.cz/mb/amptron/PM-7900A.htm.

I will happily take some if you have some spares ones. If you give me your preferred payment details I can send you the cost of postage and a donation for the site.

Is there much difference between cheap and (not quite as) cheap ethernet switches? I've been looking at some on CCL, and they have one of their own brand for about a fiver, whereas Netgear ones are more like £20-£30.