If you are doing Rails, this is a pretty good way of doing it (Mongrel+Apache+Capistrano). Fast and stable...
I had to bail out on the Cartographer plugin because doing stuff like:
<%= gmap(:mapname=>"my_map", :width=>"50", :height=>"120") %>
<%= gmap(:width=>"500", :height=>"500", :type=>:satellite, :point=>[-122.14944, 37.441944]) %>