Mine whines sometimes as well (the fan). It does get quite hot as well. You must remember that there is much less between you and the hot parts than a normal sized laptop. Maybe you are just aware of this. Don't forget to allow some circulation space around it (ie. don't rest it on a cushion on your lap etc).
I wouldn't rush back to the shop just yet. Wait till it breaks. :)
I wouldn't rush back to the shop just yet. Wait till it breaks. :)