I have five sites that need to have WordPress and plugins upgraded. Three are at WP 3.2.1, one is at 3.3, and one is at 3.0. I also need to have the mobile theme (WP Touch Pro) updated on the three sites that use it.
The sites are all similar, so I always do a test one just one of them before applying upgrades. For the main site ([url removed, login to view]) I want to have a fresh install of the current WordPress version installed on your server, then install new versions of the plugins I'm using, then install my existing regular theme and the current version of the mobile theme. No copying of the existing database is needed since it's just the WP, plugins, and themes that I'm testing.
I'll make a test post and copy the important widgets I use. If everything looks OK, then we will discard the test setup and just apply all the updates to all sites (note: we only need to test the one major site since they are all similar). That way I can check everything to make sure it all works together.
I need to have the work done as soon as possible. I prefer someone with experience doing WordPress upgrades to high-volume, live sites.