I have what I guess you'd call an HTPC setup by our front-room TV; it's on 24/7. It's plugged into the TV (1366x768) via HDMI, and we use it to view Netflix on the TV or other movies thru the computer. It also serves as a mini-server for the house, where everyone shares their music and photos. OK, and it infrequently is tasked into light-gaming. It's a C2D E5200 with a Radeon 5570 as GPU and a Samsung 1TB hdd. It's housed in an old Antec tower, with a 300W Antec Basiq(?) P/S. I got a Kill-a-Watt for Christmas, so I've been playing. I was somewhat surprised that the E5200 described above idles at ~75w; that's 3-4w more idle power than my i2500k with Radeon 7950. I have in the garage an Intel Atom D525 CPU/MB combo that I had used a year or so back, but it was god-awful slow. My primary question is this: Is there a ~ $100 CPU+Mobo(+integrated GPU to ~match the 5570) combo that would match the C2D E5200 in terms of speed, but significantly ( say, halve ) the power consumption? My secondary question is how much is my "Basiq" 300W power supply contributing to the power suck? If I find a new efficient mobo+cpu, is the P/S going to negate some large portion of the power savings?