I can't say I'd want to emulate the wardrobe of Robert Plant and the like aha (though seem as we're name dropping, I did used to play music with his son
Although it's not a style I emulate myself, a look I've always loved is that of the Smiths in the early 80s, especially that of guitarist Johnny Marr. They took the roll-necks and sports jackets of the Beatles, the rugged workwear of Joy Division, the flamboyance of the 70s stadium rock bands and added a modern, indie-ish twist. Also they were from Manchester, so would give you that slightly more urban, harder edge.
Here's a couple of pics of Marr:
Google Image Result for http://24.media.tumblr.com/tumblr_lj7p86SDPN1qch1cqo1_400.jpg
Google Image Result for http://userserve-ak.last.fm/serve/_/26962439/Johnny%2BMarr%2Bjohnny_marr_guitar.jpg
Google Image Result for http://userserve-ak.last.fm/serve/_/71699124/Johnny%2BMarr%2Bmarr.png
His hair is incredible! I love the way the Smiths combined masculine, urban and adrogynous features to make up their look, but still kept it undeniably rock n' roll. I believe Noel Gallagher was very taken by Marr when he saw him performing on Top of the Pops, and rushed out to buy the same roll-neck and guitar.