Where do I buy these replacement parts of which you speak?

I use both www.newegg.com and www.tigerdirect.com. These are both great places to get new parts. I prefer Newegg because of the "Customer Reviews" section on each product page. Most people who use newegg are nice enough to leave a note or 2 of things they like about it as well as leave note of what is bad or went wrong with it. Plus the nice thing about these to companies is that they are pretty much the cheapest I have found (if you know of any other places that are cheaper or better I would love to hear about them).