The best Arabic language programs are arguably those that are part of The Language Flagship program:
http://www.thelanguageflagship.org/content/arabic
That includes:
University of Arizona
University of Maryland
University of Oklahoma
University of Texas
Michigan State also indicates they have the same program, although the link is missing from the page above, so not sure which website is current:
http://arabicflagship.msu.edu/
These programs teach the language very intensively while letting you major in any subject you like, and they also teach some subject matter courses in the language, have regular tutoring, and required study abroad. The goal is mastery.
Note that some other universities have Chinese language flagship programs and some other languages – see the first link above for details. The Chinese programs are at these universities:
Arizona State University
Brigham Young University
Hunter College
Indiana University
San Francisco State University
University of Hawaii, Manoa
University of Minnesota
University of Mississippi
University of North Georgia*
University of Oregon
University of Rhode Island
Western Kentucky University
Georgia Tech also has a Chinese language flagship program, and again I’m not sure why it is not included in the list on the main website (perhaps the language flagship website isn’t current). See:
http://www.modlangs.gatech.edu/special-programs/chinese-flagship-admissions
All of these universities offer some merit aid for out of state students.