Naokit72 has released Saxi Player, a freeware VSTi that simulates saxophone sounds.
Naokit72, a sax player himself, provides a few sound recordings (22.1kHz, 16bit) to go with the VSTi (The tenor and alto sample files are already included in the VSTi download).
You need to specify the library path for the samples in Saxi Player by clicking the LIB button. Next you can select the libraries by clicking the dataset label (default NO DATASET).
Visit VST SAX for more information and a link to download Saxi Player v1.0.1.