Testing web application ASP.NET

[WALI <hkhasgiwale () gmail com>]

Hi

I need to test a web application whose frontend is written in ASP.NET 
(.aspx is the URL link file so I assume it's written in asp.net)

I have glanced through owasp, but amongst dozen tools listed, could not 
find something that  I should give  a try given the fact that there would 
be a bit of a learning curve involved.

http://www.owasp.org/index.php/Category:OWASP_Project

So, here I am....seeking expert opinions. Acutenix?? Paros??? Do they check 
asp.net??
Something simple to use and nothing would be better than open source - like 
free!!

OK...moderately price would also do, (I know...the word 'moderately priced' 
is also relative!!)