This.
Also, "I'm knowledgeable about most things to do with computer software, including programs such as
Excel, Word, Access, Outlook, Photoshop CS3&5, 3DSMax, AutoCAD, Dev C++, XP, Vista and
Windows 7 operating systems , I find it easy to learn any new software programs presented to me ."
This sentence is too long. Try SOMETHING LIKE:
Over my life I have accumulated a large amount of Software and Hardware knowledge. I am comfortable using Microsoft Operating Systems and fluent in Word, Excel, Access and Outlook. I also have an (extensive/basic) knowledge of Photoshop CS3&5, 3DSMax, AutoCAD and Dev C++. I am eager to learn any new programs which could further enhance my portfolio. I have advanced knowledge of computer hardware, and can both diagnose and fix many computer related issues with relative ease. I am also perfectly comfortable building and upgrading systems.