here's a really inspiring version of Carol Of The Bells....
https://www.youtube.com/watch?v=QFQyib5ZQZY
The critics agree that the 1991 recording done by The Academy Of Ancient Music is one of the finest recordings/performances of Messiah.
Amazon has it, so does youtube, and torrents abound as well.
https://www.youtube.com/watch?v=o3S9w5vwNm0