Hello, i know this isnt anything special, but i wanted to tip you off to a neat little addon called "Align". What it does is to, when enabled show you a grid all over the screen, this does, as you might understand, ease alignment when creating a interface.
However, as i said, it's nothing revolutionary, but it does help blokes making new interfaces, such as myself.
PIC (Lent from Curse.com)
DL-LINK -> Align : WoWInterface Downloads : Graphic UI Mods
I hope this help you, atleast a little bitEnjoy!