Things to know about Sanaa
Unless you have work lined up as an expat, work in Sana'a (and elsewhere in Yemen) will be very hard to come by. The majority of the locals sitting by the road will be waiting to be hired as manual labourers or domestic staff - in the latter role competing with guest workers from across the Red Sea. Those with good abilities in Arabic may be able to find work teaching English, however this will be informal and exceptionally temporary work. Schools such as AMIDEAST, MALI, and YALI hire English teachers, but you will likely need a Bachelor's and some sort of teaching certification.
Yemen is a great place to study Arabic for several reasons: 1. Languages other than Arabic are much less commonly spoken than they are in nearby countries; 2. The low cost of living; and 3. There are several excellent Arabic language institutes that offer both group and private courses with flexible schedules and reasonable prices.
The Yemen College of Middle Eastern Studies (YCMES) [www] offers courses in Arabic language as well as academic seminars in English language about the contemporary Middle East. With over 20 years of experience, YCMES is the first and only accredited program in Yemen (i.e. students can transfer credit to their home universities). Regular tuition packages include accommodation, meals, excursions, cultural activities, wireless internet, library, etc. The YCMES can also help with international and domestic travel arrangements.
Additionally, Yemen Institute for Arabic Language (YIAL) a teacher owned institute that offers similar courses outside the Old City, although it also has very good accommodations in the Old City and in the institute itself. YIAL primarily offers private courses. YIAL also organises activities and trips.