Hard drive speed for DVCPro HD

Hello,
So I've read that DVC Pro HD 1080i60 has a data rate of 14.39 MBytes/sec. I just want to make sure that my computer can handle this speed as I've mostly cut HDV and DV on it to date. Can anyone tell me. Here's what I use:
I've got two internal hard drives (not my boot drive) that I use for my capture scratch. One is a Maxtor Drive with 233.76 GB and according to some online research, appears to have an External Data Transfer Rate of 133 MBps.
The other drive I use is a Seagate 120 GB with an Internal Data Transfer Rate of 683 Mbps and an External Data Transfer Rate of 100 MBps.
Now I assume since these data rates are so much higher than 14.39, that I shouldn't have any trouble cutting something in DVC PRo HD. But can anyone confirm this? I only have about 1/2 hour of footage, so space shouldn't be an issue.
Also, I run a G4 dual 1.25 computer with 1.75 GB Ram.
The computer tends to drop frames a lot when playing back miniDV footage, and had a heck of a time deailng with HDV's mpeg compression playback, though someone just told me that I could have been dropping frames because my windows often overlap. I just hope that the computer won't have massive troubles cutting a higher quality media. Any advice?
Thanks for your help.
G4 mirrored doors 1.75 GB Ram

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This does two things, it directs people searching the thread to the specific post(s) that are most valuable is addressing the issue and it helps us poor unpaid volunteers gain some small measure of respectability in the Apple world. (I'm saving my Apple CrackerJack coupons for the FCP Secret Decoder Ring.)
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