Core

[xoft]

Put a divider between the loaded, errored and disabled plugins.

Also, you could make the MoveUp / MoveDown buttons manipulate only an internal list and once it is manipulated, display an additional "Apply" button that would do the actual reload.

[NiLSPACE]

Like this?:    

[FakeTruth]

Use javascript so you can actually drag them? Though that might be a lot harder haha

[xoft]

Like this?

Now it'd make sense to actually remove the Status column and instead put a heading above each group:

Enabled:
----------
plgB
plgC
plgA

Error:
-------
plgE_A
plgE_B

Disabled:
-----------
plgD_A
plgD_B
plgD_C

[NiLSPACE]

I now have this:    
As you can see I also removed the buttons that allowed you to 'move' the plugin up/down even though it alrealy was the top/lowest plugin.

[FakeTruth]

Disabling buttons it better than hiding them completely (at least I think so in this case)

[NiLSPACE]

Good idea thanks It turns out to be much better then leaving it empty:    

[xoft]

I still think the headers should be bigger (and separate from the tables), and the status column should go away.

[NiLSPACE]

More like this?:    

---

I like it how the headers are directly ontop the tables. I think it looks better then when they are seperated.

[xoft]

Show me a comparison, I still believe it would look better detached.

Maybe move the MoveUp / MoveDown buttons to the left and make the plugin name column expand, so that all the buttons on the page align on the right side?