*buntu is a good choice. Personally, I use Xubuntu, an Ubuntu derivative (http://www.ubuntu.com/about/about-ubuntu/derivatives) as I can't stand Unity.

If it helps, I've published a basic, quick start guide for setting up *buntu for web development at https://github.com/betweenbrain/linux-stuff/tree/master/xubuntu-12.04-web-dev-setup