Isn't there a free version that is not very intensive but yet you can still order books on??
Yes, see Option 4 here (Engine-Only Download). This is free, and then you can buy books that you can read in that.
Or you can use the free biblia.com mobile web app to read the books you order, or the Logos app for Android, iPad, or iPhone (all free).
and don't forget some free Logos and free Vyrso resources to get you going!
There is also a free Crossway books package for those who have a qualifying print ESV. See http://wiki.logos.com/Free_Logos_Books
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