Blimey! I just give my unused computer items to family members for free! If they feel the need, they give me something when I need it.
It makes a very good storage solution until you need it back, my Mum had my first PC, an Olivetti M380-XP9 (same size as a storage heater) for ages, although it did also spend some time at a mates for a while too. Now I have my own place I use it as a side table next to the sofa, and she has another cast off PC she can acctually use, that one even has a TFT which she seems to like.
Cheers
Cris.