Problem with Summary update is that you can only consolidate picking lists for the same customer.
WMSII is not a five minute undertaking. You need to plan, configure, test, deploy etc. The best resources are these two blog posts:
blogs.msdn.microsoft.com/.../wms-in-microsoft-dynamics-ax-2009-outbound-process-setup
blogs.msdn.microsoft.com/.../wms-in-microsoft-dynamics-ax-2009-shipping-process-overview
You'll be doing config, changing data and using something completely new called Shipments, and you'll want to get familiar with it in a Test environment.