If your just starting out and want to use software give the new M-Audio a try they offer a 30day free trial.
I'm in the process of downloading so will give it a try and get back to you on my thoughts.
Here is the link
http://www.m-audio.com/products/en_us/Torq20.html Well I downloaded it and gave it a go, Not bad at all, you can remap it too which is a plus. capable of running 4 tracks at once and 13 effects plus you can add extra if you have vst's , Loop and cue set points and can be used standalone or with any hardware. (once remapped)
Give it a go I recommend this before using mix master