I do everything "in the browser" these days. No Photoshop, just straight HTML/CSS/JS in Sublime Text. That way the site starts to feel alive pretty quickly and then I just tweak stuff around until I'm happy with it.
Colours... Sometimes I use http://flatuicolors.com/ as a starting point and then tweak it from there.
Also keep looking around at stuff on Dribble/Behance/Pinterest for inspiration. Some good guys to follow on Pinterest: http://www.pinterest.com/robklaiss/uiux/ http://www.pinterest.com/alexhyett/ui-ux-inspiration/ http://www.pinterest.com/wkk711/mobile-ui-ux/
Hope that's helpful.
There's not much to say really. It's just pretty vanilla jQuery and then I code the CSS/HTML by hand. I use a few Bootstrap components, but where possibly I try to craft everything myself. I think that helps to keep it simple, if you start throwing a lot of components together you end up with a mess rather than having to put the effort in yourself and, as your time is a precious resource, you think more about what's important and what's not.
Sorry, I know that's not very helpful!