That was a trick heading; I'm getting my marketing degree in religious literature.
'Dictionary of Classical Hebrew'
http://www.logos.com/product/29300/the-dictionary-of-classical-hebrew
Try buying this little puppy on Amazon: http://www.amazon.com/s/ref=nb_sb_noss/191-3472735-2447717?url=search-alias%3Dstripbooks&field-keywords=-concise+%22Dictionary+of+Classical+Hebrew%22
Or maybe you'd like the electronic version at A-Company that won't work in your Logos and costs 50% more. Sounds great.
Bottom line: If you like the OT, hebrew, Ben Sirach and the Dead Sea fragments, you'd be wise to at least consider the Logos pre-pub. HALOT is good but DCH has broader coverage source-wise. Timing is always the key with Logos.