MacBook pro with all applications open in Expose! My macbook pro 2.2Ghz was working smoothly even after opening all the Applications in the application folder and utilities folder. There are about more than 150 Applications open right now in expose.
Here are some stats when that shot was taken:
Ram usage: 3.8GB/4.0GB
Swap: 2.8GB/3.0GB
Took 10 minutes for all the applications to open at first.