I'm wondering how to make Rails development easier on the front-end design side. Our team is strong on Rails and the back-end, but we're weak with the front end (don't know much css, javascript, ajax, etc.). We've got a social web app that we're prototyping and we need some tools to help us build the front-end. I've looked on HN and found some people who've suggested:
Compass (http://compass-style.org)
Sass http://sass-lang.com
960.gs (http://960.gs)
YUI App Theme (https://github.com/tylerhall/yui-app-theme)
BlueTrip (http://bluetrip.org/)
YUI 2 Grids (http://developer.yahoo.com/yui/grids)
Web App Theme (http://pilu.github.com/web-app-theme)
Less Framework 3 (http://lessframework.com)
There seems to be so many things out there, but I don't want to waste our team's time by trying to learn everything. I want something that's simple, easy-to-learn, solid and will help us build the front-end of a Rails social app fast. Any suggestions?