I guess the answer is yes and no!
It all depends on what your final output medium will be.
Why don't you do a test shoot using movie mode and standard mode and take this to your final output. That way you will be able to judge for yourself if the end result is what you need. This way you have the added beenfit of knowing the answer in advance of your 'real' shoot.
COMPAQ something or other with 500Gb Boot Disk, 1Tb external Firewire Disk, 4Gb Memory and a super duper sound card, 19" TFT Monitor etc etc etc
Sony TRV33e : Sony TRV310e : Canon XM2
Sony Vegas Studio editions to v11
Remember, there is always more to learn than there is to teach.