Charter fishing trips in San Diego?

Can anyone recommend the best place to book with for a charter fishing trip (ideally would love to catch some tuna) in San Diego. Just looking for a day trip, not an overnighter.

Thanks.

http://maps.google.com/maps?geocode=&q=Charter+fishing+trips&f=l&hl=en&sll=32.723176,-117.232962&sspn=0.013341,0.027788&ie=UTF8&radius=0.81&rq=1&ev=zi&ll=32.727184,-117.232962&spn=0.01334,0.027788&t=h&z=16