I am a HUGE Adventure game fan. So glad to see that there are others
At the risk of being unoriginal.. Grim Fandango is my absolute favorite game. I was able to get Tim Schafer to autograph Grim Fandango and Psychonauts for me a few weeks ago and it was probably one of the coolest moments ever.
I just recently picked up the Neverhood again after 4 years of searching but I can't seem to get my computer to run it. I figure it's about time to invest in a cheap-as-dirt gaming pc for my adventure fix.