Am I all set for a reformat?

Hey everyone. I plan on doing a reformat, but before I get started with that, I am going to put everything I want on to an external hard drive for later retrieval.
(The reason I am doing this is because my computer is getting really slow with loading files, the registry is a mess even though I use CCleaner, Defrag, and virus softwares like norton, malwarebytes.. etc.. and my computer is 7 years old now…)
After I got all my songs, pictures, movies, and whatever else on my external hard drive, I am going to reformat. My computer came with the following CD’s

-Microsoft Works Suite 2003 (Disc 1-5)
-APPLICATION For Reinstalling Dell Tools System Software
-APPLICATION For Installing/Reinstalling Roxio Easy CD Creator 5.2 Basic
-Drivers And Utilities Dell Dimension Resource CD (Contains drives, diagnostics and utilities and computer documentation.)
-OPERATING SYSTEM Reinstallation CD for XP Home Edition SP 1.
-Sound Blaster Live!
-Norton Antivirus
Ahh thanks for reminding me to backup favorites!

This is all new to me. Which cd is first and which one is last. The cd’s I have are for my computer that DELL sent me are: reinstalling Cyberlink PowerDVD 7.0 Software, reinstallation Windows XP, reinstalling Dell Inspiron Computer Software (contents: device drivers, diagnostics and utilities), reinstalling dell tools system software (antivirus software, support software, multimedia software, internet software), Roxio Creator (my dvd combo) installer, Microsoft Works Suite, reinstalling Dell MediaDirect, Netgear (for wireless router), Printer cd that I got when I got my printer. I NEED HELP PLEASE……
Do I install all of the cd’s that I have after I install the new hardrive?????