This article lists the aliasses you can use in visual studio when searching with a regular expression.

http://msdn.microsoft.com/en-us/library/2k3te2cs(VS.80,ide).aspx

For example  if you want to find all guids in your solution

• CTRL-SHFT-F (find in files)
• Entire Solution
• check the Use Regular Expressions box
• type in the find box :h^8-:h^4-:h^4-:h^4-:h^12
• go

Article about how to add a "Get PublicKeyToken" menu item in Visual Studio

http://blogs.msdn.com/b/miah/archive/2008/02/19/visual-studio-tip-get-public-key-token-for-a-stong-named-assembly.aspx

Basic steps:

• Tools --> External tools..
• Title: Get PublicKeyToken
• Command: C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin\SN.exe
• Arguments: -T $(TargetPath)
• Check Options: Use Output window

Make sure you build your project before using this new tool.
I love this, and think it should be added on every developers machine.