Logic is a really good way to get into this kind of thing. Just get some basic keyboard skills and learn to play with a metronome and you're set.
I'm like grade 8 piano but I can't keep time for shit, so I'm fucked with logic hahahaha. I'll have to work on that lol.
But yeah, logic pro has like 6 super ill synths, a dope drum sampler/sequencer, tons of loops and a shitload of instruments to use. I would highly reccomend it. Not for the faint of heart/easily distracted. It take a lot of time to learn to use really well, but that said you can also start throwing together some really sick stuff right away.
And it functions as a full mixer/multitrack. Awesome program. Recently reinstalled my OS on my macbook and I am REALLY hoping I can use the same serial code to get it back. If not I will be PISSED.