i will make paperclip electro tape.
you can choos me s3 for PSU ?
how many AMP should +12V ?
It's going to be watt's not amps when shopping for PSU's. I really like RM1000's but that is overkill for 1 S3 as it could easily run 2.
If you go in hardware there is a S3 thread you can ask what others are using. But my basic advice is get name brand don't go with a cheap PSU.