did i see right or was that a typo??? E8600????when and where? how much??

ive noticed. everyone with a nice high OC on the E8400/8500. none of you have them on a gigabyte board. or at least i havent seen one..
i have the GA-P35-DS3R. im stable at 4.0ghz with just little voltage increase heck i havent even increased my mem volts any. but i cant get any higher stable...might it be my mem holding me back.crucial ballistix ddr2 800(pc6400)

another question. i see some 5.0ghz OC's very nice. are these OC's running at that everyday? is 4.0ghz good for a everyday 24/7 useage? i have posted some here and am alittle still in the noob section for OC'ing so if i sound dumb asking these questions bare in mind im still learning as i go.....thanks for any info