Hey acirtap,
See what I wrote above about CA schools. The same applies generally to SDSU. Super competitive, large numbers of applicants, high out of state tuition. They do accept out of state students but I believe they are in the minority.
The stats for last year (according to ASHA's Ed Find search program <--- find this and bookmark it. It will be your new best friend through this process) are 359 applications for 63 spaces. I imagine that this year there will be even more. Average GPA was 3.79 and average GRE was 1179. Also, that may be even more higher in upcoming years. They do look at things other than these numbers but with such a high volume of applicants, they do have to draw the line somewhere.
Your Spanish background might be a slight advantage but a minor might not be enough because in order to practice bilingually you will have to be fluent. Could you bump that up to a double major maybe? Also, your being an SLP major is also probably an advantage. Make sure your grades in these core classes are top-notch.
Looking at the big picture, even if you meet all their requirements, there is a good chance of not getting in just because of lack of space. Hundreds of exceptionally qualified applicants will be turned away. Still, raise your stats in order to be a competitive applicant in general because its tough everywhere! Also, there are many schools with a good bilingual/ESL emphasis that are just as good. You can search for those specifically on Ed Find as well.
I'm personally applying to SDSU because I am a CA resident but I'm not really counting on getting in. I honestly wouldn't even bother if I was out of state.