Witch Doctor here. I farm MP5 comfortably solo. In a quality group, due to the reduction in HP scaling I feel comfortable in MP7 with competent players. Interested in doing Ubers too and willing to farm IMs if others are interested in that.
I'm a laid back guy. I don't play for uber efficiency. I don't get too worked up over deaths, in fact I like to laugh at them. All in all I'm interested in meeting people who enjoy to play the game, don't treat it like a job, but obviously take it seriously enough that we can enjoy our successes and laugh at my deaths!
I use the AH, but not all that frequently anymore and I have a pretty good availibility.
If you're interested just send me a PM or leave your battletag here. I'm on the Americas region.
You more or less described the way I play exactly. All of my real-life friends, and most of my in-game friends, have quit, so I'm always looking for more people to team up with on farming runs. My main is a wizard, high 60s paragon at the moment. I can run MP10 solo with CM/WW spec, but elites take forever to actually kill, and I'm still building up my gearset. I'm much more comfortable at MP6-8.