The Dell Latitude D630 PP18L laptop is an excellent choice for professionals thanks to the preinstalled copy of Windows 7 Professional. With hardware such as an Intel Core 2 Duo 1.8 GHz processor, 2 GB of RAM, and an 80 GB hard drive, this laptop has all the power it needs to run all of your productivity software programs, including Microsoft Office. The integrated onboard graphics processor is more than capable of handling both spreadsheets and streaming video, so you'll be able to use this laptop to view movies or television shows once your work is complete. With four USB 2.0 ports, you'll have more than enough space for your flash drives, external hard drives, or other USB-compatible devices. At 4.4 pounds, this Dell notebook is light enough that you'll have no problem transporting it from location to location.