Please be aware that purchases from Lenovo may be delayed due to flooding in Thailand. See details in this advisory from BU Sourcing:

“As you may be aware, the recent flooding in Thailand has disabled a significant portion of the world’s overall production capacity of Hard Disk Drives (HDDs). Due to the ongoing hard disk shortage affecting all manufacturers, resulting in extended lead times up to 15 days or more on some systems, users should plan accordingly whenever placing orders. While this constraint is expected to affect all manufacturers of desktops, laptops and servers relatively equally, certain models may have better availability than others. Please contact your local IT support team for guidance on upcoming requirements.”