>I just got a new notebook with Win98 preinstalled. Is anyone else using some of the Win95 PowerToys, namely TweakUI (to get the system to bypass the network signon dialog), the SendTo extensions and DOS Here.

Not tried the power toys, but on new '98 installs I've been able to bypass the network signon by changing from Microsoft Client to Windows Logon for the Primary Network Logon in the Control Panel/Network applet.