Of course, you can't spot lose fat, but I've been amazed at the difference my arms have achieved with weight training. (Though we are talking a few months here, not a few days.)
I use nautilus machines mostly now, but I took a quick look and found this site
http://www.mayoclinic.com/health/wei...aining/SM00028, and the videos of the arm exercises look pretty helpful. (On the right.)
Also, there is
www.fitsite.com - I completely ignore the supplement adds (I get all my body needs from the food I eat, thank's all the same
), and you don't even have to register- just click on the "fitness and exercise" tab, click on the muscle you are interested in exercising and click on one of the exercises listed on the left. You can watch a loop of the exercise to replicate with your weights. I also have a weight-lifting book that I've tried in the past, but I do prefer seeing the videos.
Good luck! I hope you find what you are looking for.