Do you need SegaNet to play online with a Dreamcast?

ok i just read that i can use my MSN dial-up for quake III. how easy is it to set up though??

SegaNet is dead since 2002. Check these guides in the Getting Online section, and it's enough ;)
And yeah, it's easy using dialup or the dreamcast bba. But very hard using the broadband from your computer :S

thanks man. your like a fountain of knowledge when it comes to Sega stuff..

oh and there's no additional charge to your dial-up bill either correct????

No, there's not, because as far as your ISP (MSN) is concerned, you're just connecting from another computer. ^^

Personal MSN accounts works. Type your username with the prefix MSN/. So it should look like this:

User Login: MSN/fackue (don't type @msn.net)
Password: password