yea... use the sonitus:fx plugins that come with cakewalk, and tweak the sound with like compression, EQ, gates, etc. until you get a good sound... I know there are other plugins by Waves that do audio cleaning I think.
To boost volume without distorting, I use BBE Sonic Maximizer plugin....
I use Sonar 6 Producer Ed. for all the production work I do, and it is so much better than homestudio, which I used before I got sonar... I had Cakewalk Homestudio 2006 > Cakewalk Sonar HomeStudio 4 > Sonar 3 Prod. ed. > Sonar 6 Prod. Ed.
I recently engineered a session in Protools, and the whole time I was thinking about how much faster & better it wouldve been in Sonar lol.