Mainstream (or midsize) laptops are the most balanced of the laptop categories. Not too big, not too small, and typically more powerful than all but the desktop replacements, most users gravitate to this group.
Mainstream laptops tend to weigh in between 6 and 8 pounds and have 14 – 15 inch screens. There are a variety of configurations available with more than enough power for all but the most demanding applications.
Users that only occasionally need to travel with their laptop will find these laptops appealing. Popular models include the Sony Vaio VGN-NS230E/W and the Lenovo Thinkpad SL400. Prices start around $500.