TBSpeed :
So, I know this is a stupid question but I'm looking to find a PCI card that will act as a WiFi tower, that is make a WiFi network that I can connect to with my phone. Does anyone know if there's anything like that out there?
Any WiFi card will work. The functionality you're looking for exists in the OS, or the router.
What is the PC connected to? A router?
More details of exactly what you're looking to do, please.