Reddit reviews Gino 10 Pcs Movable 7mm Inner Diameter Black Ferrite Core Ring Cable Clip UF70B

Before you go out and spend a bunch of money, try putting a ferrite core on the USB cable. I'll update this post with a link to something that might work.

Edit: http://www.amazon.com/gp/aw/d/B007Q94DBK/ref=mp_s_a_1_3?qid=1375477435&sr=8-3&pi=SL75

Something like that. If your local radioshack has a parts bin then they should have some.

Is it GSM noise like 30 seconds into this video? If it is, you may have some luck suppressing it by adding some ferrite beads to the various cables: http://www.maclife.com/article/iphone_buzz_kill.
Easier to use snap-on ones like these rather than harvesting them from other cables.

Gotcha, thanks for the reply.

I have a feeling you're right, and that it's due to the cheap front audio cable getting interference....and that the new GPU i installed pumps just enough power to make it more noticeable.

I have some new monitor cables coming in...so I will see if they make a difference, if not I will try to get one of those ferrite chokes to see if it makes a difference.

I also haven't taken off the front panel to give simply "jiggling the handle" of the front audio cable a shot to see if it changes anything.

Very much this. Add some ferrites to your USB extender cable and you will also reduce some of the background noise.