Hey! I upgraged my RAM to 4GB and my Macbook is much smoother now. ...
Pleased to hear it...
.... I also researched a bit about Mountain Lion and surprisingly it demands lesser RAM as compared to Lion, ...
The Minimum Specified RAM for Lion and Mountain Lion is 2 GB..
Lion Specs... http://www.apple.com/macosx/specs.html
Mountain Lion Specs... http://www.apple.com/osx/specs/
.... Again thanks a lot.
You're Welcome... Enjoy