I'm in Las Cruces (but not this month). Check out the Arroyo Seco website:
http://www.arroyosecoraceway.com/scracing.html
They have some PCA events and track days coming up if you need a Porsche fix. About 1.5 hrs. from El Paso.
+1 about Juarez. It is the "wild west" of drug dealing/smuggling right now.