Ooh, great question! I totally believe our consciousness will be with us in heaven. I have read lots of accounts of after death experiences (obviously the people were brought back to life LOL) and I have no doubt that we will be aware of everything and essentially be who we are.

A lot of the people who saw heaven described exactly the same thing. They could all think and feel emotions as you would when alive. I think it is all too mind-blowing in that realm to say for sure what it will be like and how it all works! Can't wait to go there though!!

I will have to hunt down the name of the book, but there is a great book full of peoples experiences after they were officially pronounced dead. Some saw heaven, some saw hell and most of the stories described the same thing, it is amazing.

Re: psychics, I think there are some people's spirits that linger for one reason or another (I suppose we will never know for sure), but I also think that some spirits aren't who they say they are.

Anyway, hope my ramblings made sense!