first, Im not sure where you read that the phats are having problems running homebrew and games. I have a Phat on 4.30 rebug and everything works just fine.
Second, if you buy a super slim model and ask for help here everyone is just guna laugh you away.
third, what you want is a original PHAT any of them, or any of the 2000series slims.
with the phats or the slim if you wanna soft mod it they need to have the 3.55 ofw installed prior.
If they have OFW3.56+ installed when you get it, you will need to buy a flasher (80-100$) or find someone on this forums that offers a downgrade service in your country.
Or you could take the route of buying a 3000+ model for the 300$ and then purchasing a 3K3Y or Cobra ODE for 150$ and hope to hell that there advertisment about playinig backups on OFW 4.31 with any model of PS3 works.
hope this helps you, best of luck and Good hunting
you can only run PSX backups on CFW right now, unless you spend the 40$ to buy a cobra dongle and use there crappy CFW. PSP and PS2 backup loading is not a public thing yet.
"Snake. We're not tools of the government, or anyone else. Fighting was the only thing... the only thing I was good at. But... at least I always fought for what I believed in." - Gray Fox