150 huh? depends if he wants a mid or full. If he wants a Mid Tower then the Antec 900 is the best. If not then the NZXT Zero, and the Gigabyte Aurora also have awesome airflow.
The difference is obvious. A mid-tower is smaller than a full tower case. A full tower will have more space to work with, more hard drive bays, more 5.25" bays.
The Antec is nice I think Ill stay with that instead of relying on a rebate.
My mother works at panasonic so Ill be getting a nice price on a HDTV that I could use as a monitor. Ill also probably be getting a job there when I apply for it.
Right the other day I sent a PM to trotter about adding a post to any thread I find a newegg link on with a link to a sight that ships world wide (newegg don't) and sorry if it is short I will post more later on (short on time)