In comparing BitDefender Total Security 2008 to similar Antivirus software, BitDefender came out roughly $20.00 more expensive.
$59.99 BitDefender Total Security 2008
$36.16 Symantec Antivirus
$34.98 McAffee Antivirus
However, it is important to point out that Symantec requires you purchase a minimum of 5 licenses which comes out to $180.80 ($36.16 if you break it down a per/PC unit). Both Symantec and McAffee products offer Antivirus, Antispyware, and some form of a client firewall. BitDefender goes one step further with the addition of the various system maintenance tools (Find Duplicate Files, Clean Registry, etc.) and system backup tools.
If these are worth the extra $20.00 (and I believe they are) then BitDefender Total Security 2008 is a great value when compared to other security packages on the market.