CaliBrit, alright I'm not the only newb here!!!! I do have experience chartering outta Ensenada though.
Ok so I have done the Sergio's sportfishing with Sussarey last year. I took 15 drunks even greener than I and had a blast! We chartered the 55' cazador and through email and phone made sure everything was taken care of. They picked us up at our beach house and filleted everything on the way back. We got to take our own beer and had a pretty decent boat. Make sure you have someone that speaks Spanish. Their English is ok, but you do get more if you understand and speak their language. People were super friendly and all of my buddies had a great time, we partied like mad men in Ensenada afterwards! All in all everything went absolutely perfect except that we scheduled to late in the season for Ensenada (1st weekend of September). This year we are doing the same thing but on the last week of July so I expect/hope to just go nutz!! Here is their website, they also have smaller boats which seem nice.
Welcome to Sergio's Sport Fishing Hope this helps!