Vuln Scanner

I have a client that states in his RFP that we run nessus, and at least
one other vulnerability scanner to compare the output.

 

Does anyone here know of an inexpensive vulnerability scanner, that:

 

A)      Is as effective as nessus.

B)      Doesn't cost nearly as much as say ISS or SAINT (free would be
good).

C)      Doesn't use nessus plugins (like x-scan).

 

-Mike




------------------------------------------------------------------------------
Audit your website security with Acunetix Web Vulnerability Scanner: 

Hackers are concentrating their efforts on attacking applications on your 
website. Up to 75% of cyber attacks are launched on shopping carts, forms, 
login pages, dynamic content etc. Firewalls, SSL and locked-down servers are 
futile against web application hacking. Check your website for vulnerabilities 
to SQL injection, Cross site scripting and other web attacks before hackers do! 
Download Trial at:

http://www.securityfocus.com/sponsor/pen-test_050831
-------------------------------------------------------------------------------