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If you want something newer(and you may, as I'm not sure what the lifespan on older slot 1 motherboards are...), you may want to look into a fanless socket 370 VIA C3, running on an Intel BX2 motherboard(only because it supports ECC, you can see other chipsets that nominally support it here: http://www.anime.net/~goemon/linux-ecc/).
Oh, and don't get a cheapo $10 case. They'll warp and bend, and could conceivably short out your motherboard. Not to mention slice open your supple flesh.
Antibiotics act on the differences(chemical, structural, signal-pathways, etc.) between bacteria and human/animal cells. As long as differences exist, it will be hypothetically possible on a very abstract level to produce antibiotics, but that's assuming we can engineer increasingly complex custom molecules...or find new species to plunder.
(PS to trolls: Unbuffered ECC memory is only marginally more expensive than unbuffered non-ECC, though it usually has a small latency penalty. Registered/FB-DIMMs ECC on the other hand are Quite Expensive)