I got mine with Three on the one plan (mostly because it was the ONLY place to have tethering inclusive and with no data limits whatsoever) - £36 pm, 2000 minutes, unlim texts, unlim data, tethering and handset for £69 - which paid for itself with quidco cashback.
It is a phenomenal device. The titanium looks amazing (the side trims match as well, which they don't on the white - but I'm sure that's great as well) - if you're interested in the SPen then it is phenomenal, I can draw with almost as much detail as I can with a good wacom pc tablet, the 1024 levels of sensitivity is wonderful and the pen itself feels good -in fact better than my tablet's pen to hold.
The battery life is heavenly. So far I've not had to think about holding back once.. and today it has been taking some heavy usage, streamed 3 episodes of Breaking Bad on Netflix through data, listened to 4ish hours of music on spotify, also streamed via data, lots of screen time, browsing the web, taking emails, sending texts and making a few short calls. I tethered my laptop to data for a half hour through USB, but it seemingly traded juice output for juice input and the battery didn't go up or down much whilst tethering. I also made a few NFC trades with a friend who has an S3 just to see what it's like and it's good
. At 65% and still going strong.
My Note 2 has been the best buy of the year, and the best phone I've ever owned. I think my next will be the Note 3...
I considered the One X, the S3, the Lumia 920 and waiting for the Optimus G, but I'm very glad I chose the Note 2! You can tell I'm a happy consumer.