Congratulations on taking the dive into hand quilting. I find it so relaxing. Usually do my quilting in front of the TV in the evening and it allows me to have conversations w/DH and the like while still getting something done.
I also use a round hoop and have done king sized quilts this way. I've also done them hoop-less but discovered I liked using the hoop if for no other reason than to find where I was working when I last put it down! I just have the quilt in my lap and move around as needed.
I sit in my comfy chair, halogen light, liquid of choice, and any other tools at hand I might need. I also use a small pair of needle-nosed pliers for those times when pulling the needle is harder than I feel like dealing with. I also use the rubber finger tips from the office supply store to help with pulling. I use my thimble on my middle finger and the rubber tip on my index finger.
I, too, only quilt in one direction (towards myself). I would suggest using Thread Heaven to condition your thread. Helps with reducing tangles and does, I think, help the thread glide better through the fabric.
Enjoy the process.