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Update (30/04/2014): Now available, a free demo version of this tool that can combine up to 3 files.
The full version will combine an unlimited amount of files, of course.
If you want to combine multiple PDF files to a single file but want something a bit more handy than Acrobat's cumbersome functionality to do so, this script is the thing for you.
You simply run it with a single click, select the text (or CSV) file with the paths to the files, and within seconds you will have the combined PDF ready!
It's even possible to add individual bookmarks to the final file, pointing to the first page of each of the combined file.