New Computers Part 1

I've been looking at getting a new computer for a few months now. A desktop that is, I pretty much know what I want, but it's the finer details that get me, once I get the specs sorted I'll go ahead and order it. I originally had ideas of buying all the parts and building it myself, but I think that I'm too impatient for that. The basic specs are:

• Dual Core processor
• At least 1gb of ram
• 256mb graphics card
• 160gb + Hard drive
• DVD burner
  

As for monitor, keyboard, mouse, speakers etc I'll keep the ones I've already got as they are all fairly recent, and still in good condition. Although given that the case will probably be black, I'd better get a matching black keyboard and mouse set.