Just in case it was not clear, this only comes with the power cord, the game system, and the memory card. Controllers and PlayStation A/V cables should be easy enough to find. Controllers seem to be fairly common on Listia - just make sure they are the grey PS1 controllers and not the Black PS2 ones.
I believe that the PS2 and PS3's use the exact same type of connection for A/V input. I will rummage a little and see if I can possibly find A/V cables that will work with this, so hopefully the buyer will get a little more than they bargained for. But no guarantees!
And in case anyone is wondering how I tested the system w/ out A/V cables, I borrowed my brother's from HIS PlayStation.