I work in the MovLab - Laboratório de Animação Digital e Biomecânica, and we put some mocap files online, you can acess all data from where, meanwhile i put some files were:

• StandBy [BIP]
• Walk [BIP]
• Run [BIP]

Some docs that you can download (already in the tutorials page):

• How to modify a XBox 360 Live Vision web-cam to see infrared;
• How to modify a Microsoft VX 6000 web-cam to see infrared;