So, you have by now decided what configuration your system will be. Before placing the purchase order, do a thorough search on the pricing of the different devices. Carefully observe any defects in the purchased material. Buy a decent sized cabinet with a good airflow. Decide on how many PCI/IDE peripherals you are going to install, & purchase the right motherboard accordingly. Dont' go by the dealer claims, Ad benchmarks or even company specs. A personal review of the product is beneficial.Keep one thing in mind though. Computers are delicate. Handle them with care. The more disciplined you are in your habits, the better it is for your PC!
Bye.