I use Cakewalk's Sonar3 ... but its overkill for your job and costs a pretty penny.

http://www.softpedia.com/public/cat/...-1-4-111.shtml

Looks like it'll work? I've never used it.

http://www.google.com/search?hl=en&l...er&btnG=Search

Looks like there are plenty of programs out there that are just for that sort of task.