I am completely new to things like parts and especially upgrading them. I need advice on what to purchase and I need the help of the users here to make sure that I purchase the right thing, if you would be so kind. I was looking at Crucial products as that is all I found that has anything for a decent price. Does Crucial sell quality products? I can't seem to locate any reviews. First, a question: How much will switching from a 500GB HDD to a 128 SSD and from 4(2x2)GB of RAM to 8(2x4)GB of RAM speed up my system? I am sorry if that is a vague question, and I can supply information such as what I use my computer for, etc if necessary. I am looking at this for an SSD as that is all that is listed under 128GB SSD's. How will I know if this will fit in my laptop or not? How do I know that it is compatible? Then, I am looking at this page for RAM (with 2-stick and 1066 MHz checked off). Again, how will I know that it is compatible, and of equal importance, if it fits? It seems to have the same thing listed back-to-back, except one of the sticks is bigger or smaller, etc. I am sorry if this post is laughable, in both senses that it is uneducated and almost half of it can be turned into a "that's what she said" joke, but I hope you can understand that I am new to this and it is all quite overwhelming. Thank you to any helpful replies.