1) KVR1333X72RC3/512 Kingston Value RAM
2-5) Wait for a compatability list to be released.
I assume you don't have an A1 board yet or you would probably be on the Eyetech Dev List.
In the meantime you can goto the Unoffical AmigaOne Users list.
http://groups.yahoo.com/group/a1users/?yguid=109926339
