Need an app with bulk download support

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http://www.mobileread.com – My girlfriend received a Nexus 7 for Christmas, which she is thrilled about. She loves the thing, and among other things is excited to do some reading on it. I have assembled a rather healthy Calibre library with quite a few books (epub) I am able to share with her. I figured it would be simple enough to load up my library and download the various books I have tagged for her. Problem is, in every app I try there's no "download all" button. There's not even a "download set" or "download group" etc. etc. Not only that, every program makes downloading books a (HowTos)