My 77 has a small leak in the power steering control valve and I want to fix this.  To all the seasoned vette guys and gals, do you recommend that I buy a rebuild kit or would it be better to buy a whole new valve?  There is obviously a very big price difference between the rebuild kit and a new valve.  Thank you for all of your input!

Depends on you technical skills. If you are handy with tools, and can understand sometimes incomplete instructions, you can rebuild it yourself. If not, it might be best to have someone else do it for you, or just buy a rebuilt one, and install it. The rebuild is not that hard, but it does take a little patience.