machine needles for quilting

I am trying to remember the link for the good prices on Schmetz machine
needles. Anyone have it handy?

While we are talking needles what do you use for machine quilting
and why? Type and size. Do you use different ones for poly and
cotton?

I have a couple of boxes of universal 80's that I use as much as I can
but they are not always great for free motion work.

We are in the last week of escrow if everything falls into place.
Thursday the big move day. Please cross your fingers and muster up
any good thoughts and prayers that things go smoothly.
I just might unearth a machine soon!
TIA,
Taria