Dowding I'm chuffed that you are into Banks.
Oh Man, Iain.M.Banks the Sci Fi Author makes no bones about his stuff being space opera, but boy can he make worlds leap off the page.
With a breathtaking disregard for humans, a great many of his books are set in the universe dominated by the culture, a loose hegemony of humans and minds. The minds run the show, humans are just for literary interest really. His skill at presenting the reader with unimaginable vistas in their mind's eye is admirable, but is as nothing to the effect his writing has when he puts you in the mind of a drone (an intelligent droid) at the begining of Excession. The whole chapter covers about 2 seconds of battle, but lasts for 30 pages - you really feel like you have b
You gotta get into Excession, The player of Games, Look to windward, Feersum Enjinn (not a culture novel but v.good). Use of weapons, consider phlebas etc were his earlier SF books, and he's a lot more engaged with his characters than he used to be back then. I find some of his early SF to be too coldly unemtional even for me.
The Culture is so much more than the federation. The culture has some really interesting attitudes that defy easy pigeonholing.
The wasp factory was a cracker ('literary nasty' - Daily Mail), and Walking On Glass, The Bridge and The Crow Road are all gripping, disturbing and compelling books. The Song Of Stone, Inversions and the Business are not very good, best to read someone elses copy IMO.
There is a broad gap between the 'rockets and blasters' brigade of SF and the more thoughtful stuff, and yet another gulf between that and the non-genre fiction that ends up in SF because no-one knows where to put it, I speak mainly of J.G.Ballard of course, High Rise, Crash, Wind from Nowhere, War Fever, The Crystal World and so on and so forth. A great writer often ignored because his work is not easily classifiable.
Another Great British writer of finest SF is Jeff Noon. If you've not enjoyed Vurt, Pollen, Nymphomation, Needle in the Groove, Automated Alice or his short stories, then you have so much to look forward to!
heh and yeah, if the federation ever ran across the culture, they would run screaming!