Biztalk Server tips 

http://msdn.microsoft.com/en-us/magazine/cc163423.aspx#S5

SCOM 2007 PACK 4 Biztalk Server

http://www.microsoft.com/downloads/details.aspx?FamilyID=389fcb89-f4cf-46d7-bc6e-57830d234f91&DisplayLang=en

Post Build Event in Visual Studio to GAC the assembly

"$(DevEnvDir)..\..\SDK\v2.0\Bin\GacUtil.exe" /i "$(TargetPath)" /f