You will need to buy tools for the slim ps2 (to cover the sensors).
A lot of burnt games can be played online, but you must patch them witht he DNAS id first.
Not sure about the headset.
You don't need a hard drive. But if you are playing games online that require the hdd (ffxi for example), you would need the official Sony PS2 hard drive.
got my ps2 network adapter from gamestop 14.99 used and works great..found old computer hdd in closet and works great..only 19 gigabytes though,but my brother says he has some more so ill check them out later...
a few questionssssssss.
when online,u need a mic in order to here other people talk ? i wish i bought a mic from gamestop at the same time but got a dvd remote just for the fun of it-$2.99 and bought a multi-tap controll port with 4 joints for $7.99.next time ill get a mic..i have a logitech headset but its not a ps2 own....
do u get ban in anyway like they xbox dose--please give detail....