I have an Alienware M17X R4 with single 1TB HDD @5400 RPM drive. I need some more performance in terms of read and write and am looking to buy a SSD. I will be mainly installing the OS and applications on the SSD so as to increase the system response. When it comes to SSD, I am empty. So any suggestions, how to find a suitable one, buying tips will be appreciated within a budget of approx $260. Any suggestions related are welcome. Thank you.