2 x IBM 75GXP in RAID0 on a Promise FastTrack100.
Since you are doing video editing that's a lot of work with single large files so you won't have too much seeking (Raid0 does not speed up seeking) so you can get full benefit from the nearly doubled transfer rate of an already damn powerful drive. For DV Editing this setup should take a 10k RPM SCSI drive to school.
Or if you don't want the extra price that is a damn fast drive on it's own to.
As jimbo said, any decent 7200rpm drive is fairly good, but the 75GXP is the best.
Re-Check the high-end buyers guide for July. Anand favours the Maxtor for the value systems because it's a fair bit cheaper, IBM hard drives aren't cheap, but the 75GXP is presently the fastest IDE HDD on the market.
From the high-end gaming system:
Hard drive ? IBM Deskstar 75GXP 45GB - $275
Once again, the fastest drive on the market gets the nod, plain and simple. With Ultra ATA/100 support, it'll go along quite nicely with the i815E's ICH2.
From the high-end professional 3D and SOHO systems:
Hard drive ? 2 x IBM Deskstar 75 GXP 15GB - $130 x 2
The fastest IDE drives on the market are all members of the IBM 75GXP family, so the decision was relatively easy. It doesn't hurt that they're one of the few that support Ultra ATA/100 either. We'll need two of these drives in order to reap the speed benefits of RAID striping.