Ok, so little ditty I found. (Link at the bottom)
100 Meters of 300# test, 1.0mm diameter spectra cord. $13 shipped. It works great for tent guy lines, shock cording items, etc. And it's significantly cheaper than anything comparable I've found.
Also, Zpacks sells 'micro cord locks' really cheap that work great with this cord for tents and tarps and stuff.
I also got in some sil-nylon tarps and an ultralight tent is on the way, found a source straight out of China that is selling them super super cheap. They look good so far, construction and such is decent from what I can tell. I still need to test them out. But they are selling for like 1/4 - 1/3 the price of ANYTHING else here in the US.