Nowadays there are so many software titles that I don't even know which one to get.
Now I'm looking at this Sonar thingy and it doesn't really explain what it is. Its by the people who made Cakewalk but what is the difference ???

Basically I want a software package that can do the following:

1. Sequence Midi
2. Record Digital Audio
3. Allow PC Samples (wav's and so on, on my harddrive) to be triggered by my external keyboard and sequenced into the song I'm working on.

What software package can do this ?