The Head of the River (see pic), just near the Folly Bridge in the centre of Oxford is well worth checking out, as is the Trout Inn, in Lower Wolvercote, just on the outskirts of Oxford.
Cheers to Antony, and my new drinking buddies, Di, Andy and Rob!
PS. Just on drinking, which is a national past-time here in the UK, the Beer In The Evening website is a great resource. Foaming with features like profiles on what seems to be thousands of UK pubs, a pub crawl generator, ideas for pub crawls (I'm thinking the animal theme looks good) and a list of beer festivals, there's something for every boozer.