Double Take - The first panorama application maker to make any sense. I was looking and looking for a panorama maker but couldn't find one anywhere. Let me rephrase that, I couldn't find a usable one anywhere. Macs are made for their simplicity, right? So why couldn't I find a photo-sticher that was drag and drop? Or at least not text-based or a windows port. Finally I ran across a blog saying the same thing I'm saying right now, "Double Take is the best, most intuitive photo-stiching program I've ever seen!" Yes, it's shareware. I know that may make it less appealing; But trust me, it's the best thing you will use. Guaranteed.
Here's the example from the site: