Hey Chris I suggest you separate those power plugs from each other by removing that nasty looking electrical tape. Then isolate the power cbales going to the HDD. Then take all the excess 4 Pin connectors and stuff them somewhere out of sight. There maybe a little space in between the top of the case and the PSU to stuff the wires in but isn't very clear in the picture. Another option would be for you to tape the excess cables to the PSU. Two of the grey wires comming from the Video Card seem to be doing nothing and just hanging out there. Try removing those. Fold your IDE Cables to make them thinner and rounder http://www.casemodgod.com/cable_management.htm
The link has a comprehensive Cable Management Tutorial that shows how to fold the IDE cables to make them rounder. Has a few helpful tips in there too. Heres the link to the Cable Management threadif you haven't found it yet. http://www.techist.com/showthread.php?s=&threadid=95255
Good luck!