Yes - I know there's at least one other Psmith book, so I'll probably read that at some point. Unlikely to try Jeeves and Wooster again, though.

I'm not so much a Psmith fan, but I can think of at least two: Psmith in the City and Psmith, Journalist. Wodehouse has several other series as well. The other big ones are probably Mulliner and Blandings. But if you didn't enjoy J&W, I'm not sure they will be any better for you.

I suspect it's a humour thing - I think I'm just unlikely to get Wodehouse's sense of humour. (Apart from Psmith, strangely.)