I just wanted to give my professional opinion on that last post...there is no real benefit to doing weights light enough so you can do many many reps as you say, except that you will burn calories. Are you female or male? If you are female, plase don't worry about "bulking" no matter what you do. For a woman to bulk up she would have to take hormones or steriods, plus eat a very high calorie diet. I am assuming you are doing none of those! If you are male, building muscle is a bit easier, but still requires much hard work and extra calories.
Doing light weight high reps will not build you any lean muscle mass. Lean muscle mass is built by doing few reps with a heavy weight and taking each set to failure. Also, to build muscle you doneed to be eating extra calories. Your body needs the fuel to make the muscles. Doing the light weight high reps may make it appear that you are building muscle for a time, because this causes fluid build up in the muscles. This will go away in time.
One other thing that I wanted tomention is that it's not a good idea to do any exercises every day. Resting your muscles is just as important as working them. If you don't rest them they will not be able to recover from each workout and will eventually become overtrained, weak, and lose their definition. It's very important to let a muscle rest for 48 hours after it has been worked. That doesn't necessarily apply to cardio, just strength training exercises.
I hope my info was helpful to you, and please let me know if you have any questions I can answer!
Sarah