HP Pavilion DV6700
for £15
What's wrong with it: doesn't turn on (due to a mobo/integrated gpu overheat, there are burn marks on the heatsink from it getting so hot :V). I was able to fix it somewhat so it would turn on but give me a black screen of death on boot, but it isn't doing that anymore >.> You could probably mess around with it and it'll work though! maybe perhaps
You could probably sell these parts seperately and get more $$ for it but yeah that's up to you!

Specs:
>2.40-GHz Intel Centrino Core 2 Duo CPU (T8300)
>2GB RAM
>no HDD
>Some CD/DVD drive, three USB ports, one FireWire, VGA, S-video and HDMI out, and a built in memory card reader.
>broken keyboard (the keys 2 and i are missing the letter plate things, r is broken and d is non-existant)
>shitty ass screen/built in speakers

Note that the charger that comes with this can only be used in the UK! I have the original USA charger too, but that's about 100 miles away from me, but I can probably get a hold of it somehow soon.