I'm buying parts for my first PC. I've never built a computer before so I'm not entirely sure what I'm doing. I already Have a 2tb hdd, a cpu fan and a PSU. Please tell me if I'm doing anything wrong ...

my parents gave me their old computer and I want to install a graphics card with an hdmi port so I can use it to watch movies and tv.
Its an HP Pavilion Slimline s3700f
Will this one work?
https:// ...