I’ve found a neat way to survive using Eclipse on a small screen!
Get rid of the Outline view (I did that ages ago). That frees up a third of your screen which you can devote to code.
The cunning bit is – then – to use Ctrl-O to bring up the Quick Outline view, and type the first few letters of the thing you wish to navigate to. Quicker than using the Outline view in the first place, and takes no screen space!