Well, after the bang I pulled over and jacked it up and saw nothing. Drove home, jacked it up, check stupid amounts and then raised the car like 1mm.
The next day, that weird noise started and it appears either after I dropped the car off the axle stand or over time something bad has happened. The strut has just gone through the hub at the bottom, the rusty bolt wasn't tight enough (My bad, should have replaced it anyway) and has been rubbing on the CV boot. Car's up on axle stands 'till I get a new bolt.
According to a friend who knows a lot about this should be okay once I get the new bolt and tighten it to f**k, the bit that you can see bent can just bend back in hopefully. :S