You could use the out-of-the-box OR step "Uninstall MSI Package". Will make it easier for some software products since you could use just the software name (for the most software products) from add/remove programs but you'll still need one step per software package.
lets take a look at the registry: HKLM \ software \ microsoft \ windows \ currentversion \ uninstall \ [software] \ key: "uninstallstring"
should give you an idea what happens if you push "deinstall" at system control.
Were you able to get "Go To Meeting" uninstalled using BCM? If yes, please mark the correct answer to "Close" this question as answered. If not, then please review this document:
The command to use would be:
wmic product where name like='GoToMeeting%' call uninstall /nointeractive
This will remove all versions....
Keep us posted and please close when you are satisfied.