Logic Pro, all the way.
I use
East West samples, which you may already know.
What you may not know, however, is that I use
iZotop Ozone 4 to master. I just got it a week ago, and I'm just using the 10 day trial, but I think I'm going to buy it. It really does take your track and do all the mastering work for you. All you have to do is mix it yourself (get the levels and panning the way you want it), and bounce down an mp3 or wav (preferably a wav) with enough head room (meaning not too loud, and not too quiet), and let Ozone do the rest. It'll take the wav/mp3 and, depending on the setting you choose, make it sound like it was professionally produced. It'll make it sound radio-worthy.