One thing I will say from my limited experience,I'd get the faster processor,dual core,a 2+G ram and the "N" wireless card. I'm using the "N" type wireless and with my processor,even Gas' home improvement stuff just popped on my screen with zero wait. God I don't want to do this but....
http://outlet.us.dell.com/ARBOnlineS...=22&l=en&s=dfh
You might want to look at Dell's outlet...