The PC Suite (http://www.nokia.com/pcsuite) works with Bluetooth (WidComm, Microsoft or Toshiba Bluetooth drivers), infrared (IrDA) and the Nokia DKU-2 USB cable.
The cable is the fastest, then Bluetooth, then infrared.
I have the Logitech DiNovo BT mouse and keyboard. Pc Suite works with that. I have the Logitech BT stack in. (Unless Microsoft update has installed the Microsoft stack without asking me.)