the key to retain same amount of brightness is quality D1S bulb. I replace my 335i with OSRAM SYLVANIA- Xenarc 6000K and was very happy with it.

When i get my car in 6 weeks.... i will take a look on the bulb swap. I don't think it require u to take off fender... etc... Most likely as E92.. need to go through the wheel wall...

Are you hunting for vampires :D I changed my angle eye's and fog lights and it looks great :thumbup:

LOL.
I took a look at the housing for the lights and some instructions from max5(thanks btw!) last night and the angel eyes seem fairly easy to change. They are enclosed in a housing with a round cover on it that you just twist to access.
The Xenon lights have a cover on it as well with a tab that you press down and pull out. It's a real tight fit with the plastic guards right on top. The passenger side seems like it'll be even tighter since there's a black box right behind the xenon covers.
The fog lights seem fairly easy to get to once you pull off the covers right below the fog lights.
All this is in theory as I have not actually done it yet. lol :)

If anybody in socal that has done this on an e70 and wants to help me out, let me know. ;)

You shouldn't have any problems, you sound like you know how to do it. If I did it I'm sure you can. I got the PIAA LED's for the angel eye's, they look great, they also have the fog's too but didn't use them since I had already bought some; can't remember the brand other than it starting with a B but they match pretty good. Here is a thread that might help you out.
http://www.xoutpost.com/x5-e70-forum/...alo-bulbs.html

for those who are unfamiliar with H8 Angel setup. Its nothing new, its been implement since 07 BMW E92. Take a look at various options available for E92.

LED
http://www.e90post.com/forums/showthread.php?t=151144

Various H8 Bulb :
http://www.e90post.com/forums/showthread.php?t=45408