Hello, I installed at 1T Samsung SSD drive on this machine (i7, 266GHz, 8GB RAM). I am quit satisfied with the performance. I read that one could replace the DVD drive by another SSD drive to make it even faster. Is it worth to do it? What other things can I do to improve the performance of this machine? I plan to use it until this year machine comes out. If I am satisfied with the GPU performance of this machine, maybe I will use it longer.