I don't know if it will help speed things up or not, but I had wanted to try to use the 64-bit java runtime on the mac to run idea within. I added the "-d64" switch to the idea.vmoptions file. This has not broken anything, but I can't tell if it has done anything either. I looked in the log files, but did not find any reference to "d64". Is there any way to know if it is running 64bit?