Screen size: This is probably one of the most important factors (apart from processor and memory) which should be kept in mind while choosing a laptop. If you are used to having a large monitor for your desktop PC, choosing a fairly large screen size for your laptop becomes even more necessary. The standard screen size of laptops these days is 15" but there are larger sizes available as well. Companies like Dell even offer 19" and 20" screen sizes for certain models. Then, there are wide-screen monitors available for laptops these days. These are especially beneficial if you like to watch movies on your laptop of if you frequently use many applications side by side.
Processor: The CPU is the most important part of a PC or a laptop. This choice is not easy with so many options available to choose from in the market. The only two companies that make processors are Intel and AMD. Based on your requirements, you can choose a processor that is best for you in terms of both price and performance.
Memory: Now, memory is one thing which is never enough. The more you have, the better it is because it is the one thing (after the system processor) which would determine how fast and efficiently your work gets done. Most systems these days come pre-loaded with 1GB of RAM but make sure you can upgrade it later. Also, it is beneficial to know how much maximum amount of memory the laptop supports so that you don't have to go through trouble when you do plan to upgrade the memory.
Storage: This is yet another critical component in a laptop. All