Hands down the best Daw for PC is Samplitude . I recently upgraded from Guitar Tracks Pro . I spent alot of time researching the Best Daw for Audio . The 3 choices for me was SawStudio, Nuendo/Cubase , and Samp . I downloaded the Saw and Samp demos .
Saw was way too spendy and I thought the GUI sucked.
Steinberg ( nuendo/cubase ) again too spendy and a horrible rep for bugs and customer service .
Samplitude 7 Pro flat out blows the others away .
To start I did a crossgrade from Soundforge 4.5 for $450.00 bucks.
Samplitude is an all in one application from mixing,mastering to burning redbook audio CDs.
The room simulation is hands down the best soft reverb out there .
The GUI is beautiful, it is easy to get setup and going but it is a very deep app with tons of features .
The only negitive is the somewhat tedious registration process .
Samplitude is now handled by Magix, and Synthax is the North American distributor. I would highly recommend you download the demo.
Samplitude
Synthax
Have fun !!!!