Wait a moment please.
$125 is about €80...hmmmm...
It is quite acceptable if it is in good condition, but please be careful in buying old used systems, it is like buying a cat in a bag, even if it looks good from the outside (being cleaned, etc.).
Please also don't expect too much from old systems, you still might have to upgrade some of the parts.
Care to consider pop corn hour or WD TV HD for low budget htpc (no editing of course)?