Lame works just fine.
http://sonar.sonarama.com/sonar/index.php/LAME_MP3_Encoder
There are some LAME presets on the Sonar install CD. Also Sonar's Help pretty much has the same info as the link I provided above.
Yeah, it does work fine, but Winlame is a LOT faster and i'd rather have the wave file and the MP3 without 2 slow ass encodings.
Plus, it's stand alone so you can use it on ANY wave