I am about to get an imac and trying to decide between a refurbished 24" with 3.06, 4mb ram, 1TB drive, gt130 612 mbcard which was $2200 new and now is $1349 OR a new 21.5" with same ram and drive but the ati 4670 256 card ($1399) from macmall. I am leaning towards the 24" since it has a bigger screen and what I think is a better graphics card but would appreciate any advise. Will mainly use for how video & photo editing (not pro stuff). Thanks