USB-to-Serial COM Port?

I’ve got an IOGEAR GUC232A USB-to-Serial adapter that is being recognized by 11.1 as soon as I plug it in.

Bus 003 Device 006: ID 0557:2008 ATEN International Co., Ltd UC-232A Serial Port [pl2303]

Normally in Windows I use PuTTY or Tera-Term for my console communications (storage arrays, switches, null modems, etc.). Is there any way I can determine which COM port to have PuTTY or any other terminal program use for communications?

The port will probably be /dev/ttyUSB0.

I suppose the recognition is dynamic (the hal/udev thing), so you could monitor the /dev directory before and after plugging it in. Whatever new device shows up will be it.