In the last few days before my MBA gets delivered, I'm planning out my installation. One of the things that I plan to do is to slim out the applications of extra languages and PowerPC binaries. I've never done this because with terabytes of storage on my main mac, saving a few GB hasn't seemed like a worthwhile idea. As far as I can tell there are basically 3 applications that do this: Monolingual: http://monolingual.sourceforge.net/ Xslimmer: http://www.xslimmer.com/ Trimmit: http://lipidity.com/software/trimmit/ Based on simple browsing it appears Xslimmer is the more comprehensive, automated (professional?) of the three. It's also the only one that isn't free. An alternative viewpoint I found: Trimmit Outperforms Monolingual and XSlimmer in size reduction. The little "log" display tells you what it did to the file. The other two do not display their performance logs as as readily. Does a file by dragging it to the application window. Monoligual has no file selection --- Xslimmer can scan and let you choose any or several, in addition to a single file drag. For those that won't read docs --- Slimmit has a huge advantage over Monolingual, in that it does make a backup --- slight advantage over Xslimmer in that the backup option is simple to do and find. Monolingual can remove inputs ( keyboard variations, like dvorik, unicode, etc) -- the others don't. Trimmit does a selected file ---Monolingual does your entire drive --- Xslimmer scans your drive and avoids your system folder, or does individual selected applications. Protection from breaking files by stripping is: Trimmet-- 100% making the back-up Monolingual --- known list built-in at the time of the latest revision Xslimmer --- known list, updatable on-lin, and optional back-up Any experience with these?