I have had my Custom Build 2011 MacBook Pro for exactly 2 weeks today - I have called Apple to arrange a return exchange for the machine as today is the last day in the 14 Day Return period - They are due to pick it up mid next week. I have really enjoyed the speed this machine has to offer but the excessive heat and noise [compared to my last 2010 17" MBP] are starting to annoy me. I would ideally like to exchange it and try my luck a second time, my concern is will things really be any different. I have installed the 10.6.7 update to address the known locking up under load issue with this model - between 10.6.6 and 10.6.7 I cannot discern any real differences in the MBPs operation. [other than under 10.6.7 the machine will not lock under wiki test scenario null dev x 8 + discrete card activated] Annoying things - Discrete graphics card active means - noisey noisey fans between 3700 - 6200 rpm fan activity. VLC [this problem is occurs with either the integrated or discrete graphics modes enabled - watching standard def mkvs = 3500 - 4700 rpm fan activity Just browing the web in either Firefox or Chrome and the fans sit at about 3000 - 3500 rpm iTunes in coverflow mode sometimes/not always makes the fans have spasms and spin up very high... There are more annoyances I may edit this post and add them later... I am fairly confident the machine is acting within normal operating conditions -and that it is not faulty just noisey. I am afraid that this is just noraml for this model and an exchange will not make much if any difference. I have till next Tuesday/Wednesday to torture test this machine and see how it holds up....... Let the experiment begin. Thoughts ???