Yeah I'm going to lower mine a little however I noticed something as well.
I was playing my normal WOW account solo tonight (Seperate folder from all my boxing and everything) and I noticed that I get this kind of lag as well. It happens in combat most often but I did notice it while I was running around just doing random stuff.
I run a ton of mods on my solo setup but I run none on my boxing setups for the moment so it has to be something that is CPU/Windows Vista related?
Anyone have thoughts? I just disabled my Windows Indexing cause I know in older versions of windows that thing was a pain in the ass. So we will see if that makes a difference when I try and play tomorrow.
Anyone else have thoughts about what it could be? This is probably more hardware/software related then anything....