Should I Buy Logic? Options

[centipedex]

Hi. I recently switched from a PC to a G4 iMac and I wanted to know a little bit more about Logic for OS X. I used to use Cakewalk on my PC and it was good for my midi sequencing and simple recording, but I never really liked it as much as some of the mac software I had used in college such as Cubase or especially Opcode Vision. The big thing I am looking for is a good step recording feature because I am not a very skilled keyboard player (I prefer to take my time and program the notes in one at a time). I am thinking of buying the Logic Big Box and probably the EMI 6|2 or the M-Audio Audiosport Quattro. I wish there was a demo version of Logic I could try but I can't find anything like that. Should I just go out and buy Logic? What do you people think of Logic?