[newbie] Modem Question

[Bill]

Hello to the group.  I am pretty new to Linux. I have an old computer laying around that I would like to convert into a linux machine. It is a Dell Dimension L550r (PIII 550mhz) It came with a winmodem installed (Which no longer works). I am looking to replace the modem with a linux compatible modem, But I am having a hard time finding anything online. Can anyone recommend a good internal and/or external modem that would be compatible with Linux and my computer? And where to get it? I appreciate any input. Thanks and Best Regards Bill M [EMAIL PROTECTED]