Digital video capture and the K8T Neo

[wintermute]

I was wondering if anyone has had any luck capturing digital video with a machine based on this motherboard. I've tried using various programs, including Adobe Premiere Pro, Scenalyzer, DVIO, and Movie Maker. Regardless of what I use, I end up with enough dropped frames to make the video very choppy in places, especially if I try to capture type-2 (video for Windows) DV, as Premiere Pro requires for editing.

Here's my setup:

MSI K8T Neo
AMD Athlon-64 3400+
2 X 512 MB KingMax PC-3200 RAM
Hercules RADEON 9800 Pro graphics
1 X Maxtor 60 GB Ultra ATA hard drive (model 5T060H6)
2 X Maxtor 250 GB SATA hard drives (model 7Y250M0)
Plextor 708-A DVD+/-RW

I've tried the following configurations of hard drives with no success:

500 GB RAID0 array on Via controller, 60 GB drive on tertiary IDE, running from one drive and capturing to the other

250 GB drive on Via controller, 250 GB drive on Promise controller, 60 GB drive on secondary IDE, tried capturing to each

I've run some tests of disk write speeds, and they seem more than adequate for video capture (approximately 50 MB/s write for the SATA drives, 25 MB/s for the Ultra ATA drive).

I've read that there were issues with PCI bus throughput with slightly older Via chipsets, and that there have generally been issues with Via ATA controllers.

So, has anyone successfully used this motherboard to capture digital video? What did you have to do to prevent frame drop?

Thanks in advance for any advice...