I am so glad you are having so much fun with the bunnies being in the house. They are a riot and I am positive that they nag each other into getting into trouble...you know the "I'll do it, if you do it first" thing. I think that's great Grey got up on the bed with you. Daisy used to do that but then he got sick and I made the mistake of sitting on the corner of the bed to give him his medicine, so now he equates being on the bed with medicine and gets off immediately.
As far as the bite on the finger....Gypsee was telling you she loved being out of her cage and didn't want to go in. You know, another thing you might ask for your birthday is portable fencing! The great thing is that because it is portable, you can use it in your room or outside or in another room in your house. And the bunnies have a much bigger area to stay in. In fact the House Rabbit Society is urging people to use the fencing now rather than cages.
I think you are right to get her spayed as soon as you can do it. Female buns are prone to reproductive cancers and it will also calm her down and make her urine smell less strong and THAT is always a PLUS!!!!