Hand coding will always have the upper hand for the competent. Especially when incorporating new technologies and techniques. Good code/system design, IDEs with syntax highlighting and other helper functions, build/verify tools (grunt/jslint/etc) and frameworks are the things that will accelerate developement. Frameworks like jQuery UI will take care of different browser hacks like design tools can help with, for example.

Have you looked at O3Spaces? http://o3spaces.org/ Not free, but a limited community edition is available for free.