SFX™ Standard (Windows Only)
http://www.stageresearch.com/products/SFXStandard.aspx
$495 USD
SFX™ Standard is the choice for smaller, cost-conscious theatres and venues. Yet it doesn�t skimp on the features and benefits for your productions. The Standard version will play WAVE files,
MIDI Commands and Sequences, and CD tracks. In addition, the volume can be adjusted on each audio cue by using the built-in FADE effect. Cues can also be linked using the WAIT and AUTOFOLLOW commands.
There are other versions as well.
This is what we use at BMDS for sound cue maintenance.