2. Make sure your monitor AND video capture program are calibrated. If you do one or the other, your colors could be way off. Get Video Essentials, calibrate the monitor, and then calibrate your capture settings.
3. Turn off all other programs. Video capture is CPU intensive, and you don't want dropped frames. Otherwise, IVTCing is more difficult.
4. Have a lot of hard drive space ready for capture. Some programs, like VirtualDub, will "create" a file to be filled in during the capture, but it's hard to gauge how much space you need beforehand. In uncompressed RGB, ANH takes up 200 Gbs. Using HuffyUV, it takes @50Gbs.
5. Get more disc space. If you intend to run filters or such, you will need up to double the space for the "filtered" set of AVIs. That is, unless, you intend to make changes to your masters, which I wouldn't recommend. Lord knows how many times I've had to redo a compile because of some dumb mistake (not clicking a particular option, etc.)
Those are the biggies. Let us know if you have any other problems.
