Depends, 2x133 or even 2x150 isnt shabby itself, plus PC166/DDR333 is on the horizon. The P4 also uses technology similar to DDR-II, where 4 reads or writes can occur per cycle, whereas the Athlon uses a DDR bus with 2 reads or writes per cycle. So the P4 isnt true quad data rate, which is 2 reads and 2 writes possible per cycle, full duplex memory if you will. The advantages of either is obvious when we're talking about the need for real time editing and such. You have stated you want to stay with Intel, but if you cannot wait for a dual P4 board to be available dual 1.4GHz Athlon MP's would be more than adequate I think.