Which language to learn next

Hey /prog/, heres my dilemma. I wish to learn  C or python but I'm confused where to start. Reason I'm asking this is because so far I know html, javascript, some php(I know its scripting but I'm trying to get web dev down). If someone could give me a list that would depict what I should learn first that would be great. So far I plan on learning python(or perl), C, and assembly. Thanks in advance.

Just learn one and shut up. Stop making a big deal about the next language to learn as though the experience will redefine your whole soul. It won't. A good programmer's soul won't change with the knowledge of a new language. He will just become more experienced. The more languages you learn, the easier and less of a big deal subsequent languages become. So just pick one and learn it. Or learn both at the same time. It really doesn't matter.