wow, more than just Me who lives in a Rural area, and is stuck on Dial-up.
As they said, all you have todo is set up the connection.
With ISP's like Netzero (well, you said they had a Linux version of their stupid dialer) or others like them (whatever Juno became...and AOL), it might be a pain to get it to work, as if they didn't have a Linux dialer, you would be stuck using Crossover or WINE trying to get the windows program to work, and I doubt it would even then.
If you just choose a local ISP, you can save yourself some hassle, and some ads, and just use a program like KPPP (if you you KDE) to configure and connect to the internet.
And I can't reideriate this ENOUGH!!.

My laptop had a crappy softmodem...and I was using the Smart Link drivers (which oddly enough came with SuSE personal...before I switched to Mandrake 10.1), and those worked fine...so if you are stuck with a WinModem (
www.linmodem.org) there are options toget it to work....
But I would def. recommend a real modem... Any serial modem should work, and if you're like me and have a laptop with no serial port, just about any PCMCIA modem card should work fine too (don't be scared too.. Mandrake told me it didn't support my modem, and it work's just fine).