Jim seems like he knows you better but I'll take a stab at it.
I was a raised on tape, then ProTools, then Garage Band/Logic, then finally Ableton.
My music was never fundementally changed by what I used to record with soon as I got to digital. It was changed much more by how MUCH time I spent recording. That's where the real pay off is.
I say that because it speaks to the point that's most important-
Your choice, if I was to offer any advice- Do whatever will get you able to record as soon as possible!
If that's Ableton, sweet. Don't waste another minute. Go out & grab yer copy of Ableton, a mic, & an interface. Do it now.
Learn your way around Ableton & your mic so well you know where to put your mic for best results on anything you wanna do in the dark.
You'll want all 3 no question (DAW, mic, interface) & if it helps I absolutely love Ableton.
That said? If Fruity Loops or any other DAW was the fastest way to get you into recording I'd say get that one.
I hope the next post we see from you is you super psyched cuz you just finished your 1st recording with your new gear.
Welcome to the rest of your life. I haven't looked back since i was recording into one portable stereo then playing it back while recording onto another so I could get 2 whole tracks!