Dell Dimension XPS

I am thinking about buying a Dell Dimension XPS. I am also thinking about attaching dual SATA external drives. Can anyone tell me if the motherboard or SATA controller card ( I don't know which connection they use) has any open SATA ports to which I could connect a PCI pass through connection.

Thanks.

No one owns a Dell dimension XPS?

Maybe you should ask Dell..? Most people around here build their own.

Thanks, but I don't speak Hindi. No one at Dell speaks English anymore.