Normalmapping in CS:S? Yes! Have a look
http://users.pandora.be/desert/delaz/misc/images/css/css_01.jpg
(close shot CT models)
http://users.pandora.be/desert/delaz/misc/images/css/css_02.jpg
(AWP model, normal mapping at the right bottom corner and on the ground texture)
http://users.pandora.be/desert/delaz/misc/images/css/css_03.jpg
(grenade model)
http://users.pandora.be/desert/delaz/misc/images/css/css_04.jpg
(normal mapping)
http://users.pandora.be/desert/delaz/misc/images/css/css_01.jpg
(close shot CT models)
http://users.pandora.be/desert/delaz/misc/images/css/css_02.jpg
(AWP model, normal mapping at the right bottom corner and on the ground texture)
http://users.pandora.be/desert/delaz/misc/images/css/css_03.jpg
(grenade model)
http://users.pandora.be/desert/delaz/misc/images/css/css_04.jpg
(normal mapping)