Hello
There are lots of options, which one you choose will be based on your work flow style.
Download the demo of all the main offenders, then see whether you like one program more than another.
Some programs to consider: Digital Audio Workstation applications (DAWs)
Logic (If your on a Mac)
Cubase
Reason (Good for learning how real studios are wired up)
Ableton Live (Good for live performances and remixing)
Reaper (Very cheap and easy to pick up)
Mackie Tracktion (Also cheap and easy to pick up)
Renoise (This functions differently from the other sequencers listed above. It runs top to bottom instead of left to right.)
For chopping up audio, try the following:
Audacity (Free and easy to use)
Adobe Audtion (Probably the best audio editor in existence) (imo)
Soundforge
Wavelab
Recycle (Good for chooping up beats and creating Rex loops)
With regards to synths and samplers, try Triangle 2 or Synth 1. They are both simple to use and free! Also try demos of Rop Papen Albino and Vember Audio Surge. These two commercial synths have straight forward controls, and are very versatile.
Check out this portable music production pack I have compiled that includeds Reaper as the main DAW and has plenty of bundled synths, samplers & effects preinstalled --->
http://dubstepforum.com/viewtopic.php?t ... highlight=