Putting together your own comp.

It's still early to look around for a decent computer setup that can run FSX well. While doing some "window shopping" it is evident that my trusty computer shop may not have anything near what would be optimal (e.g., the RAM is good, but the processor is poor, or other key elements are just not there or would require major upgrading - something I do NOT wish to do if buying a new system). Anyway, am now tempted to build my own for the very first time, but am not that savvy as to know what all would be required to have to purchase. It would also be a lot easier to pick up certain items as they become available along the way (e.g., the 8800 vid card is on sale here for about $550 CDN, and seems a good bet for FSX). This would help spread out the costs somewhat. Wondering if there are any tutorials available for novices putting their first computer system together, or if anyone knows of a good link for help.