Above is the bike that pushed me to this: an early 30's Excelsior 125.
For anyone who's interested (hi mum!), I'm a recently qualified machinist with an unhealthy amount of old bikes, varying from tatty to utterly f*cked (above picture sums that up quite nicely!). The shiny thing above was my first classic bike (second bike after a much-abused honda CG125, which Dad now has), a 1970 BSA Bantam. Bought it as a rolling frame, then got bored for 2 years and cafe racered it. The build was documented on www.classicbikeforum.com (before and after the bauergrinch fiasco). It'll crop up occasionally, still a work in progress until I find a powerband within it...stop giggling!
Fourth bike (after a D14 banny I sold last year) was my much loved, slightly modded and well used honda CB400/4, another rolling work in progress (and due for MOT next thursday, eek!). I also have a very scruffy BMW R100RS for touring, a Kawasaki KH250 project and the little excelsior. There's some others kicking about but that'll do for now.
Final pic from the excelsior...think the moths have been at it! Strange, I Dad hasn't even been near it never mind opened his wallet nearby. Took it off to compare measurements with a talisman twin tank on fleabay. Sadly not a direct swap, do you have one hidden in a sock drawer?