Hey destanley,
Regarding security there is no compromise in between both the packages, The major difference would be in additional features ;
3-User McAfee Total Protection is a bundled product that covers AntiVirus, Firewall, AntiSpyware, Parental Controls, AntiSpam, SiteAdvisor Plus, QuickClean, and McAfee Online Backup . It is one of the best bundle software provided by McAfee. I'm sure you will love them
For more details and McAfee product comparisons, please login here : http://home.mcafee.com/store/ProductComparison.aspx
Regards,
Dinesh K
McAfee Online Community Moderator