Midimeow converts for free:
Midi files to Mp3 files
Midi files to Wav files
Midi files to Ogg vorbis files
It allows to change the rate of the output (3 rates available)
The number of channels (1 or 2)
And if you want the volume of the output instead of the preset

Probably the best at this price !

• MidiMeow 1.04 v1
  Midimeow is an easy-to-use tool to convert: Midi to Mp3 at 15 different bitrates Midi to Wav Midi to Ogg vorbis at more than 10 different bitrates It allows to change the rate...

• MeowMidi2Mp3 1.01
  MeowMidi2Mp3 is an easy-to-use tool to convert: - Midi to Mp3 at 15 different bitrates

• Power MIDI to WAV MP3 CD 1.6
  The Power MIDI to MP3 CD is the ideal all-in-one tool to convert batches of MIDI files to WAV, MP3, burn to Audio CD. As distinct from similar programs, Power MIDI to MP3 CD provides direct MIDI conversion employing no sound recording. Direct...

• Power MIDI to CD 3.0
  The Power MIDI to MP3 CD is the ideal all-in-one tool to convert batches of MIDI files to WAV, MP3, burn to Audio CD

• Power MIDI to WAV/MP3/CD 1.5.1
  The Power MIDI to MP3 CD is the ideal all-in-one tool to convert batches of MIDI files to WAV, MP3, burn to Audio CD. As distinct from similar programs, Power MIDI to MP3 CD provides direct MIDI conversion employing no sound recording. Direct converting lets you to get CD-quality output files. Power MIDI to MP3 CD also is easy-to-use MIDI...

• Power MIDI to WAV 1.5.2
  The Power MIDI to MP3 is the ideal all-in-one tool to convert batches of MIDI files to WAV, MP3

• Best MIDI to MP3 1.4.2
  The Best MIDI to MP3 is the ideal all-in-one tool to convert batches of MIDI files to WAV, MP3. As distinct from similar programs, Best MIDI to MP3 provides direct MIDI conversion employing no sound recording. Direct converting lets you to get...

• Power MIDI to WAV/MP3 1.5.1
  The Power MIDI to MP3 is the ideal all-in-one tool to convert batches of MIDI files to WAV, MP3

• Power MIDI to WAV/MP3 4.0
  The Power MIDI to MP3 is the ideal all-in-one tool to convert batches of MIDI files to WAV, MP3. As distinct from similar programs, Power MIDI to MP3 provides direct MIDI...

• Fast MIDI to MP3 Converter 6.1
  Are you a musician looking for a hassle-free way to convert your MIDI music into wider-supported audio formats? Do you want to be able to share your music with your friends? Is your label waiting for a demo disk, but all you have for now is a bunch of MID files? There is a tool that will most likely become your must-have for all of your MIDI to MP3 conversion needs