Good Software Scoping Tools

I'm publicly thanking my workmate Ali (his blog link is on my dashboard) for getting me using Lutz Roeders .net reflector and Toad's sql monitor. Both proved very useful today. I thought I lost a version of a class in visual source safe. But after disassembling the live assembly and sql monitoring my call to the database from my live application , I just forgot how the application I wrote worked. Thanks Ali, you're awesome!