[watwut]

There is something weird with Eclipse on your setup. I just checked mine and it takes 0.5. I normally keep three eclipse instances open (I switch projects and do not care about closing them) and they do not take much memory.

[boobsbr]

Definitely something strange there. I'm using IBM RAD (Proprietary Eclipse with tons of custom plugins) at work and it's about 650-ish MB.