How can you switch your ps3 from a wired connection to wireless?

May be...

If it means anything its only a 20GB.

It's not easy, but one way to do this is to buy a cheap wireless router (or a wireless ethernet bridge) and connect this with wires to your PS3. Then create a wireless bridge to the main wireless router in your home.

you cant because its 20gb version.

you'll be wired forever o_O

lol sucks to be you.

charlie is right. And i love two and a half men