Add an option to item and ship browsers allowing you to view skills that will affect it.
For example. You could right click on a missile and by selecting this option a window will come up listing all skills that will improve it's attributes and what attribute it will improve.
With a little addition to this I have been thinking the same thing, but how to put it better.
How about a "Class" Tab where you set your goal ship and what you want to use said ship for thus creating a "Class". An Example would be:
Evemon output: All skills for shield tanking missiles electronic upgrades ext. ext. ext.
>>Then you select the paths you want for your fit choice.
"Class" Ratting Cruser
fit style passive shield tanking missile boat.