Afaik, finding support for CS students is not hard in many schools. Many other departments recruit RAs from the CS dept to help with their research. e.g. I had a RA with Arid lands research program 3 out of 4 semesters during my Master's. Though this will probably vary from uni to uni and this info can be found by getting in touch with some Master students in the dept. Also, I had a TA in my last semester. So, its a YMMV for RAs/TAs depending on the university.