如何将Web开发从Windows转移到Linux

I am a systems programmer, so i just know some basic css/html. I like to learn basic of template development for sites. I have some idea about joomla. wordpress, and I am also experimenting with few wikis. A friend of mine is fireworks/photoshop advanced user, it looks quite easy to make a template using fireworks. Is there any equivalent of fireworks on linux. My concern majorly is templating, making a layout, slicing it, defining boxes (something as a place holders for menus/tabs :) ). And some easy CSS based on it. I have been surfing for these answers, but mostly all the users who have migrated to Linux of web-development are talking about PHP/AJAX i mean things like these. None of them is too concerned about templating, may be its a too easy skill for them. Anyways following are the tools i have found on the net, I am a systems programmer, so i just know some