I applied for Global Entry last week through the GOES website and was approved in less than 30 minutes with no extra fee.

My GE membership will expire the same day as my Sentri card. The process was extremely easy since it did not require me to go anywhere-- all was done through GOES. Membership in Nexus is also available through the GOES site for current Sentri holders for $50 USD.

For $179 you get 5 years of:

*Sentri access: “fast-pass” land access to the US when coming from Mexico
*Nexus access: “fast-pass” air/land/maritime access to/from Canada
*Global Entry: “fast-pass” access to the US when arriving from international location.