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The next three projects all involve BBEdit. BBEdit is a wonderful, full-featured text editor made by the fine folks over at Bare Bones Software. It's relatively inexpensive, and comes packed with a lot of user features — and bonus, you can access a lot of its services via both Automator and AppleScript.
I immediately became a fan of the tool when I first switched over to Mac from PC. (I needed a cheaper alternative to Dreamweaver that would also give me all the powerful scripting tools that a developer needed beyond just handling HTML.) I hope that these three projects will give you some insight into why it's such a wonderful tool.