If you deal with lots of attachments in emails and would like to consolidate all of them for future reference, instead of searching emails with attachment and save them manually, now there is an Outlook 2007 add-in, named as SaveAllAttachments that allows you to save attachments and optionally delete attachments from emails directly.
SaveAllAttachments is a freeware and once you get it installed, you will notice a Save All Attachments button being created at the toolbar as well as under File menu. Once you execute the add-in, it will prompt you with the option windows which you can choose where to save all attachments, or whether to delete attachments from emails with a link left in the message body pointing to the actual file location and overwrite the existing file if the file already exists.
SaveAllAttachments works well in Windows XP/Vista for Microsoft Outlook 2007. However, you must get .Net Framework 3.5 SP1 and Visual Studio Tools for office system 3.0 Runtime installed in order for it to function properly. You can download and install these two pre-requisite components from Microsoft website prior to installing SaveAllAttachments.