I want to get the right video card to play Bioshock and I was wondering if anyone currently has or knows for sure of a somewhat cheap video card or graphic card hopefully below $100 that I could play Bioshock with. I'm sure the video card my computer came with, Mobile Intel(R) 945GM Express Chipset Family, sucks so if anyone could help me I would really appreciate it. Also does anyone know if the Sigma Tel High Definition Audio CODEC for a sound card works with Bioshock or if I will also need to get a new one? Also if anyone knows of a reliable website that explains how to replace a video card it would be awesome. Thanks