It seems the conventional wisdom on these forums and many review sites is that the 2009 24 inch iMacs are better than the 2009 20 inch iMacs in every way except cost. Anyone out there feel otherwise: you picked the 20 over the 24 for some reason? I'd like to know what advantages you saw in the 20 over the 24. What reasons might there be to reject the 24 (specifically referring to the base-level 2.66 24" for $1499). Side note: Currently the 20 vs. 24 decision is driving me a little crazy. The 24" display is awesome, but I'd like to convince myself the 20 is ok, simply because I come from the sub-$1k pc world so even the $1199 (20 inch price) seems like a lot to pay.