Please help with my storage

I'm building a PC and I'm not sure what to do for storage. My 2 options are a 256gb ssd and a 1tb HDD or a 480 GB ssd. Im mainly using it for game development homework and gaming. My other parts are going to be: Ryzen 5 1400 MSI Gaming PRO B350 RX 480 4GB 500 BE QUIET power supply Nzxt s340 or thermaltake versa h15