Will my old PC be good enough as HTPC

[rainbow6six]

Basically, my old PC that I no longer use is gathering dust and I thought I could put it to use as an HTPC. The details are in my signature so I only really need a HTPC case I think..........

OR......... should I get a better CPU, RAM motherboard combo + HTPC case?

I plan on streaming from my NAS so storage isn't too much of an issue.

 

[rainbow6six]

Thanks for help, I'll give it a go like suggested.........I think the heat will be an issue though so a cheap modern GPU might be a go way to go.

EDIT: What GPU would you recommend out of interest?