I'm looking into upgrading my [slow] Pentium D 1.8Ghz to something that'll be able to edit AVCHD with relative ease. I'd prefer to spend as little as possible, and nothing above £150 is ideal at the moment.
I'm also wondering what the performance would be if I got an overclockable motherboard and good memory and OC'd my current processor, how close the performance would be to a standard clocked Quad. I've heard that the Pentium D can be OC'd to over 3Ghz! Anyone have any experience with this?