what mod allows for all purpose play?
 

I will probably be getting a PS2 next and I would just like some opinions of the best mod(either easibly installed or where I can buy the system from a place with it or something close to that etc) that can play all forms of ps1/2 games(backups, origs, and movies) thanks

Take a look at the top of the ps2 forum and look at the "Sticky" post about Boot Procedures for all mod chips...
That will give you a idea of what you have to go through with certain mod chips, then look at the Messiah 2 in that post...
That is the one I would get if I were you...
You didn't say where you are located BUT, you can purchase the Messiah 2 from Charlie_PS2 or Dust2Dust (members of this forum) and if your in the UK they could also do the install for you.. If your in the US, send it to Bill @ Freedomlives.com ...