My Avatar is a Dalek, therefor your argument is... EXTERMINATED!!!
You know who can tell me something I already know? Me. All the time. I'm really good at telling me stuff I already know. I don't need help in that department. I don't know about others, but I can't imagine I'm alone here.
If you feel up to it, you could consider building your own. Generally building your own PC guarantees you good performance for an even better price. It's a bit easier than it sounds, and you can get started at http://pcpartpicker.com