You should also seriously look at the following items, as most of your rigging will be (and
should be) with 1/2" rigging equipment.
ISC 1/2" Mini Block
TreeStuff AFB
Rig N' Wrench
OmniBlock 2.6
ArborMaster BRW
Yale XTC
Both of the 16-strand climbing lines listed work very well for light/medium rigging in the Rig N' Wrench and AFB devices. The BRW has nylon core, the XTC is all polyester. I use both of them, the ArborMaster when I need better shock loading, the XTC when I need better control.
Forestry Pro
I also use this 12-strand for light rigging and tag lines. Very affordable. I have several 200' hanks of it with sewn eyes in both ends. Use with steel carabiners.
I can't say enough good things about the OmniBlock 2.6 as a main 1/2" rigging block. I have three of the OmniBlock 2.0 pulleys that I use for redirects. The swivel on them helps to keep the rigging line straight and everything lined up. Also helps minimize rope wear from it rubbing on the sideplates.
I splice the OmniBlock pulleys onto TenexTEC ultraslings. Faster and easier to set than anything else I have used.
Just some ideas... lots of new stuff out there. And, I agree with others about the heavy stuff... the largest rope I use with any regularity is 5/8" because rigging huge pieces doesn't save you any time at all, especially when the tree fails or it hits something it shouldn't be hitting.