[Twisted-Python] XML-RPC Service with Database Access

I'm interested in using Twisted for a simple XML-RPC service that needs to talk to either PostgreSQL or MySQL. (I would prefer PG). I've got the XML-RPC part under control, that is fairly simple with Twisted Web. But what would I use for the database part? What is generally the easy way to do database access with Twisted? Are there ORM solutions that are compatible with Twisted? It would be nice if I could use something like SQLObject instead of raw queries. I'm not looking for a complete solution here. Just trying to understand what is usually done in Twisted land. S.