Why pay for this when they are all free downloads from other sites

From the selection on the page I'd choose:
Adobe Acrobat which is a great PDF document reader (see Google Catalogs for similar display tool

)
Download Accelerator Ok Dixie it has some spyware agreed. but its kept in check by SpywareBlaster ( another great free program

) I used to use Gator but that fouled up my computer through its setup
And even if it was free of Spyware

I'd choose DAP because it's easier to use.
WinRar also gets the Thumbs up,as it handles more types of Zip files than WinZip
NOTE If you have XP Winzip comes
"Built in" 
,But I have installed WinRar as a Backup in case there is an odd Zip type that Winzip cannot open.
To find the "Free" doanload links copy the softwares name into Google
Try the
www.download.com site for more (makes a good starting Point)
Other good places? (And there are 1000's like this

)
www.davecentral.com www.tucows.com