The power supply and graphics are the parts of any value in there, maybe the case if someone is into that kind of look. Even if anyone is willing to buy a used SSD, a 250GB part would be in the 10€ range including shipping. cmdrrdmc above was making an understatement with the "old hat", it's not just "DDR3", it's first-gen at that and won't go anywhere now that winter is almost over (a 130W 45nm CPU from intel's first "practical joke" series of i7 CPUs...).
I'd seriously consider selling off the PSU and graphics card and e-wasting the rest, that'd be easier to sell and ship.