Here's mine I updated 2 weeks ago.
RewriteCond %{HTTP_USER_AGENT} ^DISCo\Pump.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Drip.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^EirGrabber.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^EyeNetIE.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^FlashGet.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^GetRight.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Gets.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Go!Zilla.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Go-Ahead-Got-It.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Grafula.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^IBrowse.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^InterGET.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Internet\Ninja.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^JetCar.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^JustView.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^MIDown\tool.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mister\PiX.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^NearSite.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetSpider.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\Explorer.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^PageGrabber.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Papa\Foto.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Pockey.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^ReGet.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Slurp.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^SpaceBison.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperHTTP.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Teleport.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebAuto.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebCopier.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebFetch.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebReaper.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebSauger.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebStripper.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebWhacker.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebZIP.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\Image\Collector.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\Sucker.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Webster.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Wget.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^eCatch.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^ia_archiver.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^lftp.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebWasher.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Pockey-GetHTML.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^NetAnts.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^HTTrack.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Mimetype\Getinfo.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\Ninja.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Wildsoft\Surfer.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^FreshDownload.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^LeechGet.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^FlickBot.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^MyURLGrabber.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^iGetter.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Indy\Library.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Iria.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^eCatch.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^SmartDownload.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^mysmutsearch.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^stevens.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Teleport\Pro.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebCapture.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Do!Get's.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\Demon.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebCopy.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^iCab.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^PerMan\Surfer.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^IDZap.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebLeacher.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^CFNetwork.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^WebWasher.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^DnloadMage.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^curl.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\Druid.* [OR]
RewriteCond %{HTTP_USER_AGENT} ^tAkeOut.*
RewriteRule /*
http://dmoz.org/Health/Senior_Health/ [L,R]