I wasn’t really looking for any, but found this on another forum. www.musicmixradio.com/yardoffice
I have been using an Excel spread sheet, and thats been fine. However, this company provides a FREE “Shareware” download. It had “limited” capacity, but so far, I havn’t been restricted by anything. Also, the full version is only like $27.
I’m sure it was developed for HO, but all the Categories and Types are easily changed to O scale. I think its definetly worth a look, if your at all considering any. Never can tell when you may need the information. And, with all those cold wintery nights coming, it’ll give you something to do.