If you have another PC to download stuff on and something to transfer e.g. USB flash memory drive, you can really speed things along by downloading and installing these:
Simplix UpdatePack7R2 (~790MB) - Installs nearly all post-SP1 patches and updates for Windows 7 including apps if you want to install things like Internet Explorer 11, Security Essentials are options. Requires Windows 7 patched to SP1
Snappy Driver Installer (Chose Lite) - Will offer the latest known drivers for any devices in the system, if you first select "Download Indexes Only". It can sometimes be a little laggy so wait a minute for it to download the indexes and process them.