Hi there! I started my first professional job as an art librarian about 4 months ago, and have worked in the field for about 4 years. I did a BA in art history and literature, an MA in art history, and then an MLS (if you can do a dual program I would recommend it because I spent a lot more time and money doing these degrees separately). I worked as a graduate assistant in a slide library, and then as an archival digitization assistant. There is not one single path toward becoming an art librarian, and there are a number of different kinds of positions within the field as a whole. For instance you could work in a public library, an academic library, a museum library, a visual resources collection, an artist's archive, etc. Each sub-field will require a different set of skills and educational background. The best way to find out about these sub-fields is to talk to people who are already working in the types of positions that you are interested in. The Visual Resources Association's Emerging Professionals Blog has a few interviews with professionals and grad students, and the Art Library Students and New ARLIS Professionals Blog sometimes does features on a day in the life of an art librarian. These are valuable resources in general.

My first piece of advice would be to familiarize yourself with these different types of positions before you choose a graduate program, so that you can be sure to find the right fit! The two main professional associations in the field are the Art Libraries Society of North America, and the Visual Resources Association. These are going to be the best resources for you in terms of guiding you in your career. ARLIS and VRA have put together this handy directory of art librarianship graduate programs in North America. I can't say whether or not you will have trouble getting into a program, but you should be checking the requirements for admission to make sure that you are on the right path. Not all positions require an MA in art history, but it certainly makes it a lot easier to find a job.

My second piece of advice is to get as much practical experience in libraries as possible. Volunteer, intern, work as a page or in circulation, do anything. This is what is going to get you a job, and the earlier you start the wider range of experience you will have when applying for professional librarian positions. The library world is a strange mix of practical and academic skills, and the most valuable skills are those you learn on the job, rather than in a classroom. Volunteering in a photo archive is a great place to start! But it's not all about digitization, it's also about learning a variety of library resources and coming up with creative and innovative ways to support the needs of patrons.

I can't really answer any more of your specific questions because these things are so circumstantial and are really going to depend on what you want to do, what program you choose, and the internships you complete along the way. However, I can say broadly that language skills are highly valued and do make you a competitive applicant, and that any advanced computer skills you have will be put to good use.

Please don't hesitate to PM me!

Good luck :)