Best Notation/midi Sequencer/audio Editing Options

In case this question is asked frequently, my apologies in advance.
I'm on an eMac G4 with 1 GB memory.

Currently researching and seeking info on a combination notation program with MIDI sequencing and audio editing capabilities - such as the ability to combine digital audio and MIDI. I'm basically familiar with the Finale family but would like more info on available options. I understand that ProTools is for film scoring and would like to know more about Logic - any suggestions and info welcome.

Thanks for your time!