Hiding Menu Items on SharePoint 2007 List

If your requirement is to hide any menu item in SharePoint list for e.g. "Connect to Outlook" or "Open with Access" etc. then "ToolBar Manager " feature in codeplex is of great help .
http://www.codeplex.com/features

There are additional features which are useful too. You can download the same from :
http://www.codeplex.com/features/Release/ProjectReleases.aspx?ReleaseId=2502#ReleaseFiles

Configuring AJAX in ASP.NET

Here is the list of web.config entries requires for AJAX to work in ASP.NET App.

http://www.asp.net/AJAX/documentation/live/ConfiguringASPNETAJAX.aspx

Delete all Items in SharePoint List

You might end up with this requirement quite often and and try top down approach for delete :
for (int count=0;count < itemCount ; count++)
{ itemcoll[count].Delete(); }

and bump into exceptions , well the other way to do it is bottom up delete

for (int count =itemCount-1 ; count>0 ; count--)
{ itemcoll[count].Delete(); }

SharePoint Utility Pack

If you are looking for a tool for Site Mangement with following features :

• Recursively deleting sites
  
• Create a list in multiple sites at once
  
• Modifying field settings - some internal settings that you cannot modify in the regular interface, and the option to modify lists with the same name in multiple sites at once
  
• Push a web part to multiple sites (a specific page in each site) at once
  
• Manage list event hanlders (register and remove event handlers from lists)
  

Then you need to have this tool by Ishai Sagi

http://www.codeplex.com/spstipsUtilityPack

The event handler functionality has proven to be of great help to me.