PS3 security is "epic fail"

[rvo_nl]

The PS3's GPU doesn't have a high enough fill-rate to emulate the PS2's GPU(!), that has been commonly documented. Therefore any PS3 without PS2 hardware onboard will never run PS2 software. (I have a launch model 60Gb PS3, PAL, which has the GPU and not the Emotion Engine CPU, and even on that, the PS2 backward compatibility is unfortunately limited.)

I feel a bit ashamed talking about PS3 on an Amiga forum, to be honest.. but I do have 2 questions, which I hope someone can answer.
 
I never knew about the 2 different GPU's inside the PS3.. If that is true, then which of those 2 is regarded the best second-hand PS3 to buy? I do have a PS2 that Im keeping.

Also, its only a matter of time before this allows us to play pirated games.. do I need to worry about being blocked from the Playstation Network at all when doing this? Im not going to do any online gaming or downloading.. if possible I dont even plan to connect it to anything.