Well I can't I've you top notch advice. But I am a freshman at university (SDSU, to be exact) right now so I figured I'd give a shot of what I think from your scores and whatnot.
I think you have a really slim chance of getting into mid-low tier UC schools. Your scores just aren't high enough for them.. Neither SAT or GPA. Even for CSB, your chances of acceptance are slim. Humboldt, I heard, is pretty easy to get into so (if what I heard is true) you might get into that.
It's just that nowadays, university admittance is getting more and more competitive. Even a lot of CSUs are accepting higher end GPAs. For example, at SDSU (San Diego State University), an applicant would need at least 3.6 or higher or at least a low GPA coupled with an average SAT score (1300+) to safely get in. My incoming freshman class had an average GPA of 3.78, from what my professor has told me. That's high for a state school and CSULB is pretty much just as hard to get into as State (if not a little harder).
But honestly, if you have a really personal statement (for UC schools) and really good EC, maybe you can get in... I don't feel like there's a shot with UC. But maybe with the CSUs you want.