Buddy CMA n CA course content might b similar. but pl. check final syllabus its slightly different. n in cma ur costing will b expertised wid reference to COST ACCOUNTING STANDARDS.
If u wish to work in industry CA wid CMA is the best combination. if ur interest is in investment, banking sector, stock market CA wid CS is a better opt. after ur CA if u r willing to do CFA, CA wid CS will help u more.
I'm also a CS-CA Executive/ IPCC student. Yes CS is more of a theory course but it has its own field of work. infact in the new company bill CS powers n importance has also increased. CS n CMA are sister course of CA so there will b similarity between syllabus.
like i said earlier combination of course should not b content based rather it should b interest based. but before joining any course with CA. do keep in mind about its training structure.