Your coverletter will be different for every company that you apply to and every position that you apply for. It will ties elements of your skills and experiences to the requirements of the specific position and it will demonstrate to the recruiter or hiring manager that you, out of the 300 or so applicants, are the best fit for the position. For both your resume and cover letter, you need to avoid the general phases like multitask, and be specific about your accomplishments; make them interesting, not boring.
Here is something that you probably don't know: when a hiring manager, and not a recruiter or HR person, is taking applications, they generally base their decision on who to interview on the quality of the candidates coverletter.
Feel free to contact me directly.
at 8:05 PM on May. 13, 2009