Approximately what are my changes of getting into UT Austin? (Preferably McCombs)

<p>I'm a senior this year and will soon apply Oct 15.
That being said, I'm Hispanic, if that matters, and I'm an IB student. I've also taken some AP classes before.
I've done a lot of volunteer work and have had a leadership position.
I'm ranked #29 out of 748 so I'm definitely in the Top 8%.
I've only taken the SAT once and I did poorly :( A 1700. I always did horrible on the PSATs and even though I studied, I did bad on the SAT. :I
I really want to go to UT (I live in Texas, btw) and I want to get into McCombs (not the Honors Program though) but I don't think my SAT scores are good enough?
So I don't know what the chances are.</p>

<p>Have you looked at this page? [Freshman</a> Admission: Getting Admitted | McCombs Business School](<a href=“http://www.mccombs.utexas.edu/BBA/Prospective/Admission/Freshman-Admission.aspx#tab-pane3]Freshman”>http://www.mccombs.utexas.edu/BBA/Prospective/Admission/Freshman-Admission.aspx#tab-pane3)</p>