I see 2012 27 iMac i7 3.4 GHz GTX680MX 1 Tb fusion 8gb RAM in the US refurb store for $1999. My question is what would I have to spend to get similar performance with the new haswell iMac's? I'm guessing i would need an i7 3.5GHz GTX 775M 1 Tb fusion 8gb RAM for $2400 to be similar or slightly faster? Of course with either option I would upgrade RAM myself. The main processor intense tasks I do is photoshop and some video riping / converting. Apprecitate any advice.