I thought some might be interested in this one so I'm telling how I did (pretty simple method actually)
I did a new install so it gave me an excuse to recreate everything, (mdm theme, cinnamon + gtk/metacity all of which I still have to create)and an icon theme package once done all the rest.
I usually do the wallpaper first then make everything else to match it, but this I matched up the icons on the left and the two desklets I added on the right, so the wallpaper matches them and includes them into the wallpaper so it looks like it's one piece. Mind you this makes your wallpaper a one off that will only fit your desktop unless someone else matches everything up exactly and the screen resolution is the same.
Here's how it looks (wallpaper only finished so far).
Now the how to do this.
Place all your icons where you want them to go (I plan on only having one column) and all your desklets or conky where you want that to go, take a screen shot of it (full size) then bring it into gimp so you can use that to measure out your wallpaper accordingly (pretty simple )
To show you here's a screenshot in gimpers
this makes it quick and simple to line up your desktop's addons to make a wallpaper that can use everything on it and incorporate it into the wallpaper itself.
Save the gimp file in case you ever want to change things so it should only take a few minutes to move stuff around as long as the layers remain separated (no merging)
Hope it helps someone out trying to create that one of a kind desktop