A UV Packer that you should take a look into ! God Bless IPackThat

If you're actually working on UV layout, I 'll probably suggest you to take a look at the work of Snoelk from Germany - Technical Artist atPiranha Bytes.He have post an interesting thread (through Polycount forum) on is new Standalone UVpacker, still currently in dev and in Beta but still promising CG tools: IPackThatPlease tell her your support on Polycount or CGtalk for that upcoming "CG amazing must-have tool" !I've take a look on it, and i could say that it's really promising for the result you can got in few minutes. The next image will talk about that better than more words: 

 And for the Fun after 8 Run to find the Best solution it goes down to 18 % of Wasted Area. So Good !