I came across this website the other day when I was researching some high end graphics cards. I remember, back in the day, when I would build my own PCs and upgrade them with all the bells and whistles. We surely didn't have a cool website like this to price everything out and tell us the wattage load and compatibility. We had to do all that stuff ourselves!
Well, now you don't, check out this website the next time you plan on building your own PC, video rendering machine, or HTPC (home theatre PC). http://pcpartpicker.com/parts/partlist/