I have NikonD7000, got lightroom + CS5... lot of cash mind you just to look at raw files.... installed it on my mac tower, worked fine until Lion came along, stopped working as did pretty much everything on my system Lion worse OS I've seen. Installed Lightroom and CS on my mac book pro but not lion... CS5 can read my raw files but lightroom cannot, uninstalled and reinstalled 4 times and LR still cannot see NIKON D7000 raw files. Oh and BTW, CS5 Bridge cannot stay open long enough to edit a single file on either computer. Now Apple's solution is just use an iPad for everything so they are de-designing my beautiful $10,000 mac tower to look, act and feel like my iPad??? go figure I would not need to spend but $500 if that's all I wanted. I could not be more unhappy with Adobe and Apple Lion ... I truly fear that both are just going down a sad black hole and they were such beautiful products... now neither work on anything... after 2 weeks of tech support... still no fix.