You should disable DHT for uTorrent as it seems to be causing a lot of problems for people.
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Been using my MBP for quite a while now, and I can say it is an impressive machine. I haven't found any defects at all on it. Fans will speed up if it gets hot. Temperatures seem to be okay as well, all of them below 40C in idle, and CPU below 55C under some load. I haven't done a proper load test yet though.
Both the GPU:s are available and seem to be working without any problems, though I haven't run anything graphic intensive just yet.
I got the 85 screen and it is superb, way, way better than the one on my old Asus notebook. Easily the best screen on a notebook I have ever seen, I haven't had any problems with the reflections of the screen so that is great.
The battery life is great as well. I unplugged it between 2-3PM CET (some time after 8PM now) and it is still running on battery, with it being in sleep mode for about an hour total since I unplugged it. About 30 minutes of battery life left at the moment. I have been running on the 9400M, with wireless on, screen brightness on auto (about 2/3s to 8/10s brightness).
So far I have only encountered two problems: TCP packets being blocked by the router (fixed by forwarding the ports to the MBP).
The other problem is my right hand keep hitting the key to the left of the one i want, I believe this happens partly because I have had another column of keys at the right of my old notebook keyboard. Already started improving as I've been writing this.
I haven't installed WinXP yet, will probably do that tomorrow, but so far I haven't missed Windows at all.
All in all, a great purchase, easily the best notebook I have ever used in my life. Only need to install all the applications that I have been missing, which could take a little while (oh and installing apps are a million times easier than under Windows).