Congratulations on your first FW!
I may be wrong, but I am not aware of anything special in the needles. At least I use whatever is handiest in the box.
As for bobbins, they can be purchased on-line or on Ebay. Getting bobbins from an original machine is the best, but reproductions are made also (some better than others, I am told). The Singer 301 uses the same bobbin as the FW.
Have fun with your new machine!
Dayle