I just can't hook up my PS3 to the internet, and I don't know how.

Does it automatically have wireless internet?

Do I have to use a networking cable to hook it into my modem?

If it does have wireless, how do I hook it up?

Can I hook it up wirelessly to Comcast High-speed(Don't know if it is wireless)?

I pretty much can't hook it up with a networking cable, because my phone uses the modem, and I can't find a cable long enough.

I really need PSN access because I have so many games that are good online, such as MotorStorm: Pacific Rift, Little Big Planet, GTA IV, and RockBand 2.