because of the increase of speed (2.33 vs 3.3) you will see an increase in performance:http://www.anandtech.com/bench/Product/289?vs=52
and that is with a 2100 @3.1
if you also consider that you will be upgrading the RAM to ddr3, that will also be beneficial.
btw, i would recommend a H67 board for the sata 6Gbs (even if you do not use it NOW) over a H61 which does not have it AFAIK.
but you say "hey in video creation . ."
most software makes use of the cuda cores on the geforce cards offloading the work on the gpu and quick sync beats everything by far.
EDIT: looks like DXRick beat me to the link punch . . :P