Alright I found out that unlike Nvidia drivers, attempting to install older catalyst drivers on top of new ones will install sucessfully but not actually downgrade the driver version. Apparantly you have to uninstall->reboot->reinstall->reboot every time. After going through that I am now actually using 10.1 cat's instead of 10.4 and several of my issues have gone away (the flickering box and driver crashes). My monitor still won't go in standby though.
I'm pretty sure I thoroughly removed all the nvidia components beforehand but I guess the next step would be to try a driver cleaner program.
P.S. - To all the trolls, yes my thread is definitely flamebait, I did that on purpose out of frustration with ATI after never having significant issues with nvidia. However I assure you my problems are genuine and I am no noob computer builder.
P.P.S Here is a pretty pic of my rig, sorry for crappy iphone photo.