So I've held off on buying a MBP until an update and it looks like it just happenned....so I need advice on this new bump. In the education store the 2.2 MBP starts at $1799 and the 2.4 starts at $2299 so that's $500 more and if you want the 2.6 upgrade you have to fork another $250. So that's a $750 difference between the 2.2 and 2.6, is it really worth it? Is the difference in GHz noticeable in that case?