Here's a tip for speeding up Internet and LAN browsing on Windows 2000 and XP machines. Open regedit.exe from Start->Run Navigate to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/Current Version/Explorer/RemoteComputer/NameSpace Under that branch, select the key {D6277990-4C6A-11CF-8D87-00AA0060F5BF} Delete it This key instructs Windows to search for Scheduled Tasks on remote computers. Unless you use this feature, which most people don't (for remote machines), it is safe to delete the key.
More to follow as and when I come across them. I've successfully changed my logon screen using Reshack and am quite pleased with the results.