Logic query

Whilst using a workstqation to write my material and Logic to produce it, ive now decided that recording notes on ym work station just isnt convivent because the best way to record them is to to them live then quantise but seems as i cant play the keyboard for donkeys this proves a problem.
The other ways are step and grid recording which need a bit of knowledge on step size and gate times etc etc once again not much of a clue.

So Ive decided that I want to use Logic as it looks alot easier and would be able to get more rhythimical with the notes rather than my current recording method.

What do I need to connect everything to my mac?

Cheets

Jutt