I started using taco one day and it is still in my dock. It has some simple syntax colouring, clips, quick insert, syntax checker, jump to a line, find, batch find, lots of prefs to mess around with, a project view. It has live preview too though that doesn't work on my dorky puma (OS X 10.1.5) 'puter.
The best part is that my cocoa services menu works on it - and it can handle utf-8 characters.
There might be better editors but for those still on puma give this one a try.