I started to use OpenOffice Base today. I decided to use it as budget and plan review tool, but time will tell whether it was a wise decision, because so far I have mixed experience :( The basics (meaning really basics – tables and relations) work well, forms work (but far from well) and I’m completely unable to create queries with simple join of two tables. SQL query seems allright, but Base complain about syntax error anyway. Damn this will be probably tough.
Anyway the good place to start are Base tutorials at ShowMeDo by Dai Just. Respect!