I want to buy a large memory card for a PSP I will hopefully soon be getting, but being rather broke I can't really afford to fork out a couple of hundred bucks. Would a +-$11 4Gb (http://www.dealextreme.com/details.dx/sku.15684 or http://www.dealextreme.com/details.dx/sku.12795 or http://www.dealextreme.com/details.dx/sku.12712) work? Or should I rather use a $4 MicroSD adapter (http://www.dealextreme.com/details.dx/sku.17789) and use my 1Gb MicroSD?