Just got a new MacBook Pro and I'm lovin' it. I find GarageBand very sweet too - so quick to get something going! Now, I hear people say Logic Express is so much more professional. My goal is to produce some good sounding demos with virtual drums, my guitar and my bass and vocals. I have a Line 6 Toneport. Do I need to get Logic Express in order to get a professional sounding demo? Why are the drawbacks and limitations of GarageBand compared to Logic Express?