checking what you have running,

aawservice.exe Ad-Aware 2007 Service from Lavasoft
PnkBstrA.exe PunkBuster
PnkBstrB.exe PunkBuster
hpzipm12.exe HP printer support

these services you may not need while playing wow. personally, i would remove anything i didn't need, especially if i'm having odd problems.

the other weird processes seem to be related to ATI's graphics drivers.

which brings me to the drivers. are you sure you have:
a. the right drivers for your card?
b. the latest and greatest directly from the ATI support webarea?

at this point, i don't think it's a wow/blizzard issue.. but a graphics card/driver issue.

let me know if you find out anything.