Need Windows 7 OS Disk for new hard drive

For Windows Vista and Windows 7 I have listed a means of downloading Windows installation files, making a bootable USB and using the BIOS SLP activation mechanism of the Reinstallation DVD to activate see here:

http://dellwindowsreinstallationguide.com/a-clean-install-of-windows/

These solutions are unofficial but are widely used to the difficulty of procuring installation media.

Otherwise if you reside in the US or CA and in warranty you may fill in the media request form:

http://dell.com/recoverymedia

If out of warranty or if you reside in another region.  Dell have no fixed price and in some cases they will not provide media. There seems to be no consistency.

Thank you for the link, and i'm sure it will be helpful to me, but consider me in need of windows install for dummies. By that I mean even after looking over the link you gave me I am still unsure of the step by steps to take in order to successfully install windows 7 on my new hard drive.

•  After I create the bootable windows 7 disk, do I then need an image burn disk to follow?
• Do i need a tool to unzip the files that will be on the bootable windows 7 disk, and if so, how could I possibly download or put a zip file tool on a new hard drive that does not have an OS on it?

My apologies for sounding like a novice, but I pretty much am.  Would it be easier for me to just buy a windows 7 home software package from best buy or something?

See here:

http://dellwindowsreinstallationguide.com/download-microsoft-windows-and-office/download-microsoft-windows/windows-7-sp1-iso-download/