For the month of Feburary, we’ve been using the Cingular Samsung Blackjack extensively and it seems to work well.
Use the links to the left (point your IE in your phone directly to http://oggsync.com and then click on the OTA downloads, easy to install and get started.) The free version of OggSync provides a great start and full unlimited syncing with one of your Google calendars.
See detailed features for a complete breakdown of the differences between the free and pro solution.
There were some recent changes to the Google API (with recurring events) if you have a version prior to 2.12, please upgrade to the latest. (The software should notify you that there is an update available.)