Ask Engadget: best prefabricated gaming desktop?

We know you've got questions, and if you're brave enough to ask the world for answers, here's the outlet to do so. This week's Ask Engadget inquiry is coming to us from Wilfred, who needs a new gaming rig (but ain't interested in buying the time to build one). If you're looking to send in an inquiry of your own, drop us a line at ask [at] engadget [dawt] com.

"I'm going to buy a powerful computer, so naturally, I am looking to buying a gaming computer. I know about Alienware and iBuyPower desktops, and while I know others exist, I don't know which one is superior. Looking for a Core i7 and enough horsepower to chew through today's latest titles, but I'd prefer a company that's reputable and known for above-average service. Thanks!"

We know you're probably passionate about [insert PC builder here], but let's keep the banter civil down there, cool? Cool.