Great, thanks.
Have been tempted to consider a Mac and Logic but scanning the forums for comparisons, Cubase generally comes out better. And cheaper (comparatively, given you need a Mac). And not Mac
Although I'm currently trying Reaper, the Q about recording from the USB was general - Does it record, and what, in any DAW? I don't actually have a MIDI I/F (having totally got rid of my entire studio gear way back...) so wondering if I need one.
FL, again tried when it was just a tracker(!)

Looks better now

but no score. But good price and good deal all round.
Ian