I have taken a majority of the psychology classes offered at my current community college (,) and I believe UC Davis is
Yes! Great correction here. This comes from Strunk and White. Use a comma before the conjunction in a compound sentence.
I have taken a majority of the psychology classes offered at my current community college, and I am currently reading (what... what are you reading right now? I like the most recent book by Ellis about REPT. Tell not only what subjects interest you in this field but also what you have been reading. :-)
believe UC Davis is the best place to further my studies in this field. too obvious.
...isolated enough
where that students can...
Don't use & in formal writing.
:-) This is pretty good, but I think it needs more discussion of recent advancements, articles you have read, research interests, etc. :-)