where do you go to upgrade or purchase a hardrive for your ps3

talking about 120 gb hardrvie does anyone know how to upgrade it to get it to a 120 gb or 160 gb

ok first you go to newegg.com or any store get a Laptop SATA hardrive 5400rpm and then open up your ps3 and install it

heres a 160gb hardrive on newegg CHEEP 109$

http://www.newegg.com/Product/Product.aspx?Item=N82E16822148184

Best Buy, Circuit City, Office Max, Office Depot, etc

Any place that sells laptops/laptop accessories. Just ask for laptop hard drives that are compatible with the PS3