Maybe try to look in your manual you got with the laptop to see if it shows how to take the keyboard off. To answer your question about mixing ram, I have a 1GB stick of corsair in my R3000Z and it works great.
Where can I get an updated driver for this video card other than the HP website? I went to download what I thought were the right drivers from NVIDIA but it said it could not find the installed hardware on my system?? It should not be...
It seems like with technology you can never get the best deal because it is always changing. I don't think there will be any drastic changes to the R4000 so maybe wait a little bit to see if they come out with any new features.
Dells are great if you have the money to throw around. Compaqs and HPs are the best bang for your buck period. I have never seen so many features for the price of an HP or Compaq. I love my R3000Z!!!!!! Thats my 2 cents