With such data, MySQL wouldn't be a problem. NoSQL db are designed for large data sets, and are quite different designed(everything you can do in NoSQL you can also do in sql db).
Besides, NoSQL are far more harder to administrate. Cassandra needs right config to be faster than normal MySQL db, if not it is much slower(and even then you can have few problems with it). And for most NoSQL you need VPS/dedicated hostage.
