I don't know about Minecraft or other softwares, but if you google minecraft requirement, then you can compare it with the computer properties shown there.

1. 320 GB hard drive is i guess average now a days, and shouldn't be a problem,
2. 4 GB memory...not bad at all, 8GB is much better but it should be fine
3. http://www.minecraftforum.net/viewtopic.php?f=35&t=29145 this link might help

i don't know if it was a big help but this is all i know lol

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