i just lost my desktop and i figured y not make my own personal gaming desktop. im just wondering what are the main factors i should be looking for and what parts should i purchase and how should i put them together. if some1 could tell me how to or recommend a website that tells me how, that would be great.
It will take a lot of researching though but it may be worth it in the end. It will be alot cheaper than Alienware and dell xps and such but the only company I know that does not make enormous profits are Realm Computers. Check them out, If you want the perfect price/performance ratio, then they are for you.
If you are going for a cheap high performance system then the only 2 ways are building it yourself or buying it from Realm as they offer about the same price as it would take you to build it yourself and they give a 3 year warranty for any component failure.
A good comparison to make is that while you are building your own system, check the components you think you want in the system from manufactured systems from Dell's XPS and Precision brands, Velocity Micro, Alienware (Dell), Hewlett Packard's Blackbird and Voodoo brands, and even Apple's MacPro towers. These systems are considered to be gaming and graphics systems from the major manufacturers. Apple's MacPro would need to use Boot-Camp and a user-install of a full version of WindowsXP or Vista for Windows gaming, but is still considered along with these others as a gaming and graphics rig. Take a note of what HP, Dell, Apple and Velocity Micro put into these systems and in the way of audio, video, memory, hard drive, and processor and use this to create your own checklist of items for purchase. One last thing to consider is the chassis of the system, and what size of motherboard will fit in that chassis. Make sure that the chassis you get comes with at least a 500-watt power supply for a single video card system, or a 700-watt power supply for a dual/triple (Cross-Fire or SLI) video card system. This is because these power supplies will have extra 6-pin power connectors for high-end gaming video cards.
My particular home-built computer setup is using an Intel Xeon 2.4 GHz processor with 16GB of DDR3 memory, a 1GB RAM nVidia GeForce 9800 video card, a SoundBlaster XFi Audigy sound card, and a 10k rpm Quantum hard drive, and a Pioneer Blu-Ray ROM with DVD & CD burning drive. Since the chassis is in a small box/large shuttle micro-ATX form, and I am only using a single video card, and I am not overclocking either the processor or video card or memory, I am using a 550-watt power supply. But if you intend to add more than one video card or to add even more components in a larger chassis than this, you should opt for a 700-watt power supply.
One last thing to consider is using Windows Vista Ultimate. This may sound silly considering all of the complaints about Vista at this time, but Vista Ultimate in either it's 32 or 64 bit versions will offer good backwards compatibility on a high-end gaming system. It also has DirectX 10 and OpenGL 3.0 included in the installation. XP right now only supports DirectX 9, but may have OpenGL 3 support. Additionally, using Vista Ultimate, and I mean ULTIMATE, not the Home Basic or Home Premium versions of Vista also has better security support and better multi-processor and single multicore processor support as well over the lower versions of Vista and XP.