Use OSX Finder Quicklook (Spacebar) to preview all plain text files
More QuickLook plugins:<p><a href="http://www.qlplugins.com" rel="nofollow">http://www.qlplugins.com</a><p><a href="http://www.quicklookplugins.com" rel="nofollow">http://www.quicklookplugins.com</a><p>This one is my favorite: <a href="http://macitbetter.com/BetterZip-Quick-Look-Generator/" rel="nofollow">http://macitbetter.com/BetterZip-Quick-Look-Generator/</a>