Ps2s are harder to insall the xbox chips that need soldering. I cant say easy or not but I am sure if you are not able to install then you can easily find an installer.
If you do go for a chip then go for a DMS3 or Messia 2 pro
Both have good components and have been around for a while. Both chips can be turned of in case you want to go online
DMs3 however can upgrade its bios and has a hdd tool, not alot of use from the hdd tool but being upgradable means its relatively future safe.
But whatever you do, go for a modchip.