So far on my dev site I have 'view cart' and 'checkout' buttons. However due to how Google Checkout has to have it's checkout button specially placed using the 'checkout' button skips the cart where the Google Checkout button is and goes to One Page Checkout.
Now, I don't want to remove either the 'view cart' or the 'checkout' buttons so I guess I will just point both of buttons to the cart where the option to checkout normally or checkout with Google is present at the bottom. Is this my only option for checkout out flow if I want to use Google Checkout. How about this idea... the 'view cart' button goes to the default cart layout and the 'checkout' button goes to a special page with the buttons for 'Google Checkout', 'Paypal', and 'MC/VISA' prominently placed at the top with or w/out a cart summary.