First thing first, just to let everybody know that I never build a computer before. I wanted to build a new computer but don't know where to start. I will probaly buying everything from Newegg. The computer will mostly used for internet, watching HD movie, converting video (ex. DVD into avi) and etc. I will spend around $1000 on all the part that I need. I already have the following parts so what else do I need. - 320GB WD external hard drive. - 500GB WD internal hard drive. - 22" LCD Monitor. - LG DVD RW drive. Would like to build a quad-core computer. Thank in advance for the advice.