- Power, I think you are in good shape with the decision you made, like you said, if you end up tripping a breaker, then you can go dedicated. (I would still consider he whole house protection but few people have it and they are doing fine...)
- Picture / Sound quality improvement with the Power Conditioner, I have read a number of claims of this and would not suggest they are wrong, but in my environment I really can't say I noticed, and I really wanted to, but it was great before the Monster and great after, if there was any difference it fell outside my perception range. It got it for protecting the equipment, not claims of overall system quality improvements.
- TV, wow, while looking at your manual you got a lot of TV there, I knew it at the high level but skimming the manual was interesting, I think you have a month of just messing with the "modes" before you settle on and heavy calibration and given what is available in the user menu's I still say take a shot at DIY cal before paying a pro, but if you get a pro you better get one that knows that set. I can't see how you could go wrong. If I read it right it is a monitor, no built in tuner, but it was late and I might have missed that.
- HDMI , no brainer.
- DVR, I don't know much about it.
- PS3, heard only good things about its Blu-Ray.
- Sub, Don't know it well enough to comment.
- Receiver, heard only good things about it, plus you can get the software for some cool cal features, not sure if they are needed or not but it looked neat. It offers auto-cal with a mic so it will be interesting how it reacts to your all front speaker surround decision.
- Speakers, that is the only choice I would question, only because I have no enperience with virtual surround with quality speakers, and have never heard them in a home setting, if the speakers sound as good as the marketing then they should be great. While the wiring was a bit of a pain, I had wall outlets on the l/r sides at the back of the room and snaked the speaker wires though the hole there for the outlets and put in wall plate speaker connections next to the outlets in the back so I went for actual rear speakers. I really want to hear what you think of the surround effect with everything in the front, I love the depth of sound from mine.
The only thing I see missing is a lot of cash but money well spent from your choices.
For the burn in I have not heard of pre-burned in sets but I doubt they would lie about it. Persoally I would still burn my in before leaving banner things up for too long or side/top bars. You can suffer through a short time of zoom (retains aspect ratio but cuts off part of the picture) until your burn it is really done. As others advised, just make sure you are not running with a real hot picture, like in game or vivid if you do decide to have the bars during burn in. The only thing I can't live with is distorted aspect ratio, drives me nuts, so pre-burn in I just used zoom, after burn in I have it in auto so I get bars on some things and it is fine for me.
Receiver calibration, after the auto-cal ran I did make a number of adjustments until it hit a point I liked, I think by biggest pain was getting the front / rear balance right to get are really clear surround sound field and it made a big difference to me. The DVE disk has some audio cal on it but it is just the basics, I used a nubmer of movies to really dial it in. This is usually the least accepted approach but that is how I did it and now am very happy with it, have not had to mess with it since.
As for picture cal, I suspect the samsung will be a walk in the park compared to the 141, but agian from looking at the manual it seems to me your hardest choices will be all the picture modes you have and to narrow down the ones you will use the most and then take your time on the cal for those modes especially.
There are also a lot of "auto" cal options, like light/dark sensing that you might like how it adjusts itself or you might want to turn off and use manual settings, it also has, like mine, content driven cal where that info is available from the DVD and then you have to decide if you like that or not.
I would look at it like an adventure and just have fun with messing with the non-cal options as well as messing with the cal, like we have discussed you can always bring in a pro in a few months if you don't like what you get.
Just remember, calibration, especially for the first time is a long process, as you get used to the controls, it is not that it is all that hard, it is just time consumming.
Keep in mind, that if you use the auto-features it will somewhat defeat what the pro has done, or you for that matter, so again, I think your picture modes and and auto options will be your biggest decisions. No matter what, I think you are in a can't lose situation, which it the great thing about buying good gear and doing your homework as you have.