Ive seen a large drop in the value of the litecoin currency lately. I wanted to buy another GPU to start a new mine, however I changed my mind when I saw the graphs of the litecoin currency.
For now I have two workers, one is my laptop I use every day, and the other my old desktop which mines at ~20 kH/s. (not much but it's something)
I'm also planning on installing miners on some of the PC's at where I work. (lol)
At that speed you are probably using more electricity than you make in LTC. Still works as a pure exchange thou. But be aware that your laptop is more sensitive to mining. (Gets too hot quicker)
I using my laptop to do tests before I get a GPU rig. I have heard rumors about it getting to hot, however, it is a Alienware Gaming Laptop and on max, the GPU doesn't even get much hotter than 70.