Hey Shannon,
Obviously passing it off someone elses work as yours is wrong. And purchasing a sermon because you're too lazy to write on is wrong. In fact, if you're too lazy to prepare a sermon, you're gonna be too lazy to make someone elses sermon your own. Anyone can stand up and read a manuscript, but you'll sound just like someone reading a manuscript. Seen it done, and it stinks.
Back when the Passion Of Christ movie was being shown in theatres, there was a lot of talk about who killed Christ. I wrote an article for the local paper based on the old game "Clue", and went through the evidence of who killed Jesus. I emailed a copy to a friend in another state, who forwarded it to a friend of his, and I got an email from this guy I didn't know asking permission to preach from my article. I was honored that God would use something I wrote like that. The pastor emailed me after he preached it and said it was one of the best sermons he'd ever preached. It thrilled me that God used it that way. And to me, that's what it's all about. Dude, I don't even take credit for the stuff I do write, so forget about me taking credit for somebody elses. It's all about doing what honors God, and that means preaching what God want's preached, regardless of who writes it.
Honestly, I don't know how anyone can afford to preach Ed Young's stuff. If you get the whole Pac, like you're talking about, you'll spend over $300. I can't do it.