Thanks, this guide was hugely helpful. Successful repaste here, took care of the speaker cable ("infamous speaker cable" in my notes, since i couldn't exactly check the forum while poking around inside my G73 ^_^ ) and they still work. Didn't take pics as i didn't encounter anything out of the ordinary. scary moments were the kb, and taking out the final few ribbon cables / flipping the mobo over.
Used ICD7, arctic-clean 2-part stuff, and then took a cloth wheel on my dremel + some grit, and polished my heatsink for the 10 mins you're supposed to let the ICD7 sit. Too lazy to lap, but got a shiny finish out of it =D ,
and compressed air to clean out the fins (they pick stuff up fast

)
dropped me to 83C max in furmark, ( from 101C ) with a block under my battery tilting it towards me more (Ergonomics + airflow

)
also quieter, of course, as the fan hardly kicks in to an audible level.