It is no surprise that many great gaming computers out there today tend to be very costly. Hard core gamers will spend thousands of dollars on hardware and accessories. A great way to save money without compromising performance, is to consider your requirements and .
It is important to do your research before you begin. There are numerous online communities where you can obtain your information for free. Your computer will require the following basic components: CPU (Central Processing Unit), e.g. AMD Athlon II X3 455 3.3GHz AM3 95W Triple-Core; motherboard, e.g. CoreASRock M3A770DE AM3 AMD 770 ATX and RAM (Random-access Memory), e.g. G.SKILL 4GB (2 x 2GB) DDR3 1333MHz.
Your computer will also require a video card, e.g. MSI Twin Frozr II SOC GeForce GTX 460 768MB; storage, e.g. WD Caviar Blue 500GB 7200 RPM 16MB Cache SATA 3.0Gb/s; optical drive, e.g. ASUS SATA 24X DVD Burner; power supply, e.g. Antec VP-450 450W; case, e.g. Rosewill DESTROYER 3x 120mm; cooling (for budget, use the cooler that comes inclusive with the CPU but this can be upgraded at any time), sound (use integrated or upgrade to something like the ASUS XONAR_DG 5.1 Channels PCI) and network (integrated).
Gaming PC brands that offer affordable hardware that are worth looking into includes AMD, Biostar, ASRock, G.Skill, GeIL, MSI, Samsung, Western Digital, Asus, Antec, Rosewill, Cooler Master, etc. to name a few.