Your in the right place to learn
The best method of using a PS2 hacked is to buy a "Phat PS2" and a "Network Adapter", this allows you to use an internal IDE HDD upto 750gig.
You can then install games using PC software to the HDD and play them like you inserted the disks
FreeMCBoot comes with OPL usually, this is used as a front end listing the installed games and click to play !
Compatibility is also higher with Phats + Network Adapter. It's a little money to be spent, but it's worth it. From this point you can then convert the Network Adapter to SATA (1-3) using a PCB Bridge that fits inside the network adapter, giving you access to up to 2 Terrabytes
of space by using a SATA HDD !
Also, dig out that WII, it can be hacked too !!!