If you want to transfer sms,contact,music,video,photo from iphone to computer,
Cucusoft iPhone Tool Kits is good for you

free download links:

hotdownloads.com/trialware/download/Download_iPhoneToolKits_

If you want to backup all your files from iphone or ipod,you need to use a backup software.Next,I introduce you a powerful backup software--Cucusoft iPad iPhone iPod to Computer Transfer

Cucusoft iPad/iPhone/iPod to Computer Transfer is four in one shareware,including iPhone to Computer Transfer; iPad to Computer Transfer; iPod to Computer Transfer; iTouch to Computer Transfer

Free download in:

http://hotdownloads.com/trialware/download/Download_iPodToComputer_reg.exe?item=18286-1&affiliate=406676

Learn more in:

http://www.mustsoftware.com/Cucusoft-iPad-iPhone-iPod-to-Computer-Transfer-guide.html