Try these guys for a quote
http://www.directron.com/tcwo.html
They used to be called Thompson Compter Warehouse
Tell them what you want and they will recommend all the components and even assemble it for a small fee. This way you can choose, with their help, each of the components rather than relying on Dell to choose for you. I have 5 or 6 Dells and while they all work just fine - I find them slow despite the specs. The custom rig I put together costs more but has been super fast and bulletproof for 2 years. Tech supports are a waste of time - thats what Google is for.