I've been using MusicWorks2 for a couple of years. It's not free (about 40pounds sterling I think it was)and I don't know if it's still on the market. It'll read and save midi (albeit with some strange key signaures when importing midis) as well as its own .MWW format. Interface is a bit awkward, but it copes with triplets, ties, transposition, mixed time signatures,multiple staves etc. However I've found nothing else between the free/shareware and the expensive stuff. Anyone know of any mid-priced software with an easy interface?