How quiet do you mean by quiet?
If you really care, go with intel and you can use 19cm Sanyo Denkis, or quiet Panaflos, or *possibly* no fan at all, on your heatsink and not worry too much about heat, for a 1.4GHz TBird I don't know...
The thermaltake 60mm is "quieter" than the Y.S Techs...