In a coexistence environment with LCS, is there any issues (performance concerns aside), with installing the OCS backend on the same SQL 2005 server as the LCS 2005 database, but on a seperate SQL instance of course?
As long as you use a seperate SQL instance, this should meet your coexistance needs. This is obviously short term solution and you should make you follow the standard SQL rules...DBs and Logs on seperate spindles.