I'm not sure if this issue has been already mentioned on this forum.
I just solved really interesting problem, crash between FCP and Logic Pro 8
If you tries to install FCS 2 after having installed LS, you'll be in trouble.... --;;;;
(FCS 2 can be installed easily except FCP 6)
read this,
http://docs.info.apple.com/article.html?artnum=306567
hopefully,
this can help some people to live their lives happily....!!
p.s.
btw,,, Good news is,,,,
Logic doesn't seem to be affected by FCS at all...
(Only FCP is drunken by LS... ^^;