Please help - same issue
I am having the same exact issue - I wiped my drive clean and restored from time machine using a net gear stora. this restored version 10.7.1, which was fine and dis not experience this problem. As soon as I updated to 10.7.2 the problem then started to happen again where spot light crashed as soon as you try to use it. I also notice the issue when trying to join different wireless networks.
What I have tried -
Rolling back machine to 10.7.1 - Worked. - after update to 10.7.2 (failure)
installing the apple combined update for 10.7.2 - after 10.7.2 was already installed - FAILED
My wife has a macbook 2006 white one that runs lion Core 2 duo, and 2gb ram - really only difference is she does not have the Adobe collection CS5 installed and she does not experience the issue.
WHATS really weird is that I have a Band new Mac mini running 10.7.2 WITH Adobe CS5 collection on it, and it does not experience this issue. Any other ideas??????? losing my spotlight and Wifi icon flashing and not being able to select which network I want and being able to type in the Network passphrase, makes my wifes 2006 mac more reliable then my new Macbook Pro....GRRRRRRRRRR Sniff Sniff
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iFamily = 1 macBook, 1 macBook Pro, 1 macMini, 2 IpodTouch 4gen, 1 Shuffle, 1 iPod 2nd Gen, 1 Ipod 3 Gen, 1 iPod 5th gen, 1 iPad, 1 iPhone 4, and 1 APPLE IIgs (Still working)..............and a partridge in a pear tree.