Make my own light pro!

You'd save maybe 200g at most. You're smoking something if you think that'll bring the Pro to Air weight.

 

...why didn't you just buy an SSD MBA?

 

Hit the gym, you'll think the mbp is a featherweight in no time.

 

Does removing the DVD R/W void the warranty?

 

You're not going to save that much weight. I guess if you want to go all out you would remove the glass from the screen too, oh and you could run with one stick of RAM instead of two.

 

The 13" MBP weighs 4.5 lbs.; the MBA weighs 3.0 lbs. You'd have to shave 1.5 lbs., which is much more than a DVD drive, HDD, and glass...