You may be able to get more specific about which drivers are for your particular Dell. When you start up the Dell support page, enter the 7 alpha-numeric character Dell "Service Tag" that you will find on your computer. It is essentially a serial number. When you use that code, you can get a whole variety of information as well as the specific drivers. Things like manufacture date, original configuration, manuals and guides.
I do this a lot since most of my clients' PCs are Dells. I create a folder for the specific computer and call it drivers for.... Then I create a folder for say the network driver. Open that folder and download the specific driver for that purpose. Do that for each driver you need. Store that driver folder on a backup.
NEVER use the myriads of "driver download" web sites. Only Dell
Tip: When you install Windows 7, particularly when you use a SP1 version of the installer, the installer will install most if not all the drivers it needs. You do not need to replace them with Dell drivers unless you have a specific problem and that is rare. BUT, always download and store them all BEFORE you do the install. If you are doing a re-install, it helps to open Device Manager and make notes on the specific hardware that is installed on your specific PC.