I love Tool and SOAD too, I'm prettyy eclectic when it comes to things. I agree about Meshuggah, I generally only listen to them for their slower clever stuff, the faster mad stuff is technically good but not really my thing. I'm more into scandinavian powercheese rubbish Like Lost Horizon/Hammerfall and prog stuff like Symphony X/Dream Theatre etc.
It's gonna be good fun getting into drums tho, something new to get my teeth into. like I say I know most of the stuff in theory but actual playing techneque is another thing altogether.
Anyhooz cheers for the welcome, much appreciated!