Coworker Scott Hanselman and Rutger Smit have given WatirMaker an overhaul and renamed it WatirRecorder++. Read more and download it here.

At this time this appears to be the only recorder for Watir, there was a Watir WebRecorder but for some reason it has been deemed "unavailable until further notice".

If you just started looking into Web browser automation make sure and give SWEA, C#, and NUnit a try; I think you'll be more impressed with this solution if you're in a .NET environment.