Waves makes great plug-ins, but as stated above they are a little pricey. What you can do, however, is download a trial version of the Waves plug-ins. Make an account of their site, sign in, find the plug-in you want to use and download a trial version of it. I did this recently, and it did what I needed it to do. Loaded it up in Pro Tools, fixed my file and bounced the track out.