I am in the process of purchasing a new system. I have pretty much settled on a Mesa Strategy 400 which delivers 200 watts into two channels by means of 12 6L6's. I play in a stoner/doom metal band with one guitarist through a hundred Marshall watts. Our drummer, oddly enough, is not particularly loud. My intent is to run two 4X10's in stereo with one effected channel if needed and one more or less clean (as an aside, recommendations for efficient cabs would be appreciated). Our venues are not halls or gymnasiums, but rather dingy basements/parties and the like. My intent is to get a wall of sound which is totally thick, but not deafeningly loud. Contradiction? Different thread perhaps... Anyways, I keep telling myself that this should be way, way more then enough for any real world situation, but I still have lingering doubts when I see casual mentions of kilo watt amps on a regular basis. As always, your thoughts are valued tremendously.