Originally Posted by nickster_uk

There's quite a few other services you can safely disable too which are probably eating more of your RAM. You may want to check out the following link as it has been very helpful to me:
http://www.speedyvista.com/services.html

Also, if you have third party indexing programs installed, you may want to think about disabling them or changing their settings as they can eat a huge amount of resouces.

Hope that helps