The guys at World Of Raids shared a pretty cool tip they found about boosting the game performance of WoW. While I still haven't had the chance to check this tip out since I'm still out of the game, it's still worth sharing to you all.
Since 2.3 came out, many players noticed a major FPS degradation; a russian player "Raze" made a nice find and posted it on WoW Europe Forums, he found ount [sic] that you can significantly boost World of Warcraft performance by simply opening Windows Media Player before starting up WoW.
Short non-technical explanation: Your computer usually reserves a certain % of the CPU for background applications. Having WMP opened changes this behavior and allocates all available CPU to WoW. Little to no CPU time will be given to background applications and services, therefore increasing WoW performance.
It worked for us, but according to that thread, its not working for everyone.
Opening Wimdows Media Player eh? That's simple enough to do. I really have to try this out when I get back to playing. I hope you guys will tell me if it works for you.