Audio/MIDI Apps & Hardware.

[Glucking]

I am new to the world of Linux and would like to get hold of some combined 
Audio Recording and MIDI applications. I am used to such things as Emagic 
Logic and ProTools on the Mac and wonder if their is a similar app. for 
Linux. Also, is their any particular distribution of Linux that could be 
recomended for audio work? I currently have RedHat 5.2.