If you have or can get an old GameShark Pro Cartridge for your PSX this would be very helpful... and grab a copy of CMGSCCC's GSCCC software... works wonders for dumping the RAM and more....
I warn you that this is not an easy task to take on...... Just making interesting codes takes a while...
PS3 Slim 320GB
PS2 v11 exploit w/300GB Maxtor
PS2 v10 exploit w/80GB Samsung - Network Games
PS2 v10 exploit w/60GB Samsung - Network Games
PSP 1001 3.52M33 w/10GB total storage
NDS DSReal 4GB