Wow someone is setting you up for a disaster... Yes, it's easy putting it together if you know some amount of information. First off, it depends on the budget of your computer. Second, the balance for the computer. If you just pick any part and didn't know part A can cause bottleneck because of part B than yea it's gonna be a waste of money... Especially if a person said he don't know much about computers.

What is your level of knowledge of computers ThadMyster? I'm not trying to sound mean but I definitely know it can depend.