My friend Chris posted about something that's really cool with .NET web services I never knew!
http://cgaskell.wordpress.com/2007/01/19/overloading-routines-in-webservices
Jeeeesh! you are still using ASP.NET web services - embrace WCF with open arms! Experience the future now!
:-)
Agreed w/ Granville...with WCF we get real overloads, and it's more OO in general. 1.x type webservices are dead!