I recently outfitted a Raleigh International with a Shimano Nexus 8 hub built into a 700c wheel (which I won on eBay). Overall, I'm liking the hub a lot though I haven't quite adjusted it right and have a problem with it slipping in low gears. It's really quiet and offers a good range of gears. I don't have experience with other modern IG hubs, but I've read good things about the SRAM S7 hub.

Neal