This section is about the more advanced components of a computer.

Video Card: This processes the graphics for the computer. The better the card the better the graphics look especially for pictures, video and games. Though there are a few Direct X 10 games out so I would recommend getting a Direct X 10 video card like the NVidia® 8400 series or an ATI® Radeon® 2400 series for any low end PC to enhance movies and graphics on programs in general, an NVidia® 8500-8600 series or ATI Radeon® 2600 series for a middle end machine to improve visuals for gaming, movies and programs. Nvidia® 260 series,  or ATI® Radeon® 4350 series for a high end gaming PC drastically improves games visuals, High Definition movies and enhances general program visuals a lot.

Audio Card: The Audio card processes the sounds for the computer. The better the card is the better the sound will be especially for games and high definition movies and videos. Any upgrade here will make your music and videos sound better but if you are aiming for a surround sound experience I would recommend a Creative Sound Blaster X-fi card, any of these X-fi cards allow for 5.1 to 7.1 Dolby Digital Surround sound and even if you are using  stereo you should notice a difference from your built in audio.

Motherboard: The motherboard holds and controls all of the components inside the computer (CPU, RAM, etc). This is important because you have to buy all of the components according to the specifications set by the motherboard. I would recommend a motherboard a that has an Intel Socket 775 and supports a quad core processor eventhough you may only get a duel core processor to start with but it leaves upgrade space. I would also recommend a motherboard with a PCI express slot for a good video card such as those discussed above and has support for 4-8 GBs of DDR 2 RAM (DDR 2 is Double Data Rate times 2 (Which is fast and is capable of higher capacities than DDR, standard RAM)). A recomedation is for a standard home computer to have 2 GB of RAM, a video editing computer should have 4 or more GB of RAM, and a gaming computer should have 8 or more GB of RAM.