Take a keyboard sight reading class, and practice everyday--it is less trouble than learning to use any midi editor or notation software, and at any rate, if you are earnest about using notation software, you will still have to be able to read in order to tell if the program has given you what you really want (and Joe and Malcolm, don't you dare try to tell me that your notation programs always give you the simplest and most accurate notation--it just ain't so!)