i currently have a 1tb western digital blue hdd. i am planning to upgrade it to a 120gb ssd with a 1-2 tb green storage. my friend told me that saving up for a 1tb or 500gb ssd is better. i am a casual gamer and i dont do video editing. i also surf the web a lot. with 7-15 tabs open at once. which is a better choice for me? price is also an issue although i will buy the big ssd if it is worth it. and are those programs used to migrate the operating system from an old hdd to a new ssd good? like will it screw with my ssd? please help thanks