What is better a psp console or a psp 3000 console?

I am thinking on buying a PSP console or a PSP 3000 console and I want to know which is the right one for me. I know the 3000 has a better screen and you can play it outside aswell as inside. I dont have a credit card to use the PSN internet stuff on it. Do I need one and I only want to use it for the games. Which one is better for me for playing only games on it? I dont want to spend alot of money on a console. I need a PSP console before next year.