These days many people are buying the Intel’s latest Quad core systems. I have heard that the systems with Quad core are performing very good. The prices of Quad core PC’s are also not that expensive. If you are planning for an assembled laptop then you need to think about many things like processor speed, mother board, hard disk, RAM and many others. Based on your processor speed and model you have to choose a mother board. You can choose an Intel original mother board or a Intel chipset mother board. These days applications are using high RAM. So it is better to go with a 2GB RAM. The hard disk space I suggest is 160GB. But you need to take a SATA disk with 7200RPM speed. If you are buying a computer for a home use you need not require a Graphic Card. Other wise go for a Nvidia Graphic Card. For the monitor it is better to choose a LCD monitor.