Old school and pretty much worthless now...

Here are some nifty little tools to use from a windoze 95 machine:

Sapmonitor Will watch for SAPSs on  your network
SapSnoop   Another SAP monitor utility
NoveMem Helps in calculating how much memory your server needs
DSDoc  slick utility to look up DS errors

Pandora  This was just released, a very powerfull way to get into trouble!!  It will extract user names and passwords from dsfiles, along with a mutlitude of other things.  Even works on  Netware 5 !!!
Be very carefull with this  one....
Will run on NT, 95, 98, Linux and YES even  X-widows!!