hey,
Ive been experimenting with a shader that simulates the first image very closely. Ill share it when its done but as some simple help, the effect can be efficiently achieved with a enviroment mapping shader + specular (phong) highlight shader. If you dont program you can actually just combine 2 pre-made effects like EM+specularH using Nvidia Fx composer. Check it out at Nvidia's website (sorry no link)