Arcadepunks dot com will allow you to download an image with everything you need to put straight on a micro sd, you’ll be playing a vast array of classic console in no time. Just make sure that you buy a card bigger than the image you download
Can anyone recommend a decent dual fan to keep the Temperatures down on this for a 3b+ ?
No problem. The Pi 3b+ will emulate multiple systems so can swap from md to SNES to Ps1 to N64 at will. Struggles with anything much past ps1 though.
Thank you, I'll do some research and try find n64 one (y)
This is just a case, you need the pi to go in it. But yes, it is possible to play roms (that you legally own of course) through a raspberry pi using retropie. There are plenty of tutorials out there.