Video card must be 128 MB or more and should be a DirectX 9-compatible with support for Pixel Shader 2.0b (ATI Radeon X800 or higher / NVIDIA GeForce 7600 or higher / Intel HD Graphics 2000 or higher).
Yeah almost anything will work... I was running a radeon 4670 in my desktop, which is pretty low by todays standards even compared to laptops and I could nearly max the graphics. Hell even integrated graphics can run the source engine. You should be fine with anything