Answers below;

[QUOTE=higx;694502]I think i'm done researching and am ready to pull the trigger...

The things I try to get answers to before buying a wheel/tire are:

Now with the X5 -- a few more questions popped up
-Can I get BMW center caps - yes (Yes you can, $14 for the set at any dealer with a BMWCCA club discount)

-How/where what do i get TPMS - think I have that covered (the '10's use different sensors then earlier models and they are not compatible with the '10's so you'll have to buy from a dealer. About $330 for the set from your local dealer with BMWCCA discount)

-Do I have to run staggered... answer is no -- (No, you don't)

-Will I be able to run a * 295/40/20 on a 20x9 all the way around and not get the wheel arch extensions? That I don't know about. (You'll need the fender extensions. I'm running 275/40/20's for winter wheels on our '10 3.5d and I should have the fender extensions on the front, but the back looks perfect. 295's will defin need extensions. I would also consider wider wheels if you are going to run 295's. I have 275 on 10" so 295's will run on 10-11" best. Check with tirerack, they have good chart resources for that kind of stuff)

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2013 Cayenne GTS Basalt Black/Alcantara (Wife's Daily Driver)
2013 Porsche 911 cab Aqua over pebble and agate (My daily driver)
2010 Porsche GT3RS Black Grey/Black Alcantara (Track car)
2012 Porsche CaymanR Peridot Green with carbon sport buckets (Wife's Track car)