I'm thinking of changing my 2010 13" MBP to a 21.5" iMac. I had been all set on the i3 3.06 GHz model. But also considering the i3 3.2 GHz version. Is it really worth the extra 300 bucks though for that small of an increase in processor speed plus the larger hard drive and better video card though? This iMac will not be used to store all of my photos, videos, and music (i have a separete server computer for that) so the hard drive size difference means nothing for me. But processor and graphics card...really noticeable for $300 more though?