I have HP Pavilion Slimline S5112F support low profile PCIE video card and comes with 240W power supply unit?

I have a HP Pavilion Slimline S5112F support low profile PCI Express video card and comes with 240W power supply unit and want to know if I can upgrade it to 500w power unit and if so where can I find one.|||It appears to take ATX connectors so you can replace it with one from Newegg, Frys, Zipzoomfly

etc...



Antec and OCZ Tech make decent ones and there's usually a sale every couple of weeks.|||No power supply upgrade fits the Slimline S5112F case.