Both threads are good threads. I'm using Aurifil now because I stocked up when I found a sale. I have used so many brands of thread over the years that I now buy whatever name brand is on sale. I just ordered cones of 70wt poly from Connecting Threads. That thread is being discontinued and it is excellent bobbin thread for me and good to fmq.
I wouldn't stock up on a lot of tools just starting out. Each quilt will provide the opportunity to try new tools.
I know my tool choices have changed from year to year I've been quilting. I use the Go die cut machine for most all my fabric cutting so I don't need a lot of rotary blades or rulers I've collected.