Mapping Arcade Buttons to Computer

I'm in the process of getting the resources together and building a Custom Arcade Cabinet that I'll be using in conjunction with a custom built computer. I will want to add some fresh new arcade buttons to said cabinet. So my question is... What hardware will I need to connect to my computer to use the arcade buttons I need? and does anyone recommend using a particular hardware encoder to get the job done?

So IE:


Arcade Buttons --> Encoder -- > Computer

Thanks for your help!

Thanks,
David