Okay. I’m actually loading all my media from two separate storage partitions (I wanted to keep it exclusively to one disk, but was forced to bring another one into the mix when that one filled up).
I only have my OS and applications on the system drive.
Here’s a picture of my setup:

For this project, I have video files stored on both the J and S drives (again, I was forced to include the S drive as the J drive began filling up).
The E and F drives are external USB and quite slow. I only use them for backup.
Maybe you can give me some advice on how to rearrange this mess so as to avoid issues like this in the future. The C and J drives are two internal drives which are part of a RAID array. The S drive is also internal but not part of the array. I can’t do it until this project is finished, but would it help if I added the S drive to the array and make one big storage disk?
Back to the issue at hand, what would you advise I do to make this project work? Just import all the sequences and let Premiere chew on it for a while?
Thanks again.