All my machines are Viking including my long arm and love them all..as for batting warm and natural by the bolt is cheaper from Joann's website with a 50 or 60% coupon (a lot cheaper than the store itself) or you can get it without waiting for coupon or even the Hobbs 80/20 from
www.marshallsdrygoods.com
As for fabric when I first learned quilting I was told to get a yard each and many times I was out of fabric when enlarging the project or changing pattern or whatever the reason is so now I either buy a bunch of different precuts with at least 3 yards of two of the coordinating fabrics for borders and smashing or I would just pick a line of fabric and get few yards of at least 4-5 fabrics of it that I like best. Now lately I am just buying bolts as it gets a lot cheaper and worth it.
Hope this helps