[Sneakerphile]

Cool!

Looks like i gotta drive down now, the tickets for train i was promised have gone

Shit. In that case you'll probably be better off driving to somewhere outside Central London and get the train from there. Otherwise you've got congestion charges and paying the earth to park in Central London (if you can find anywhere on a saturday) Get to anywhere within zones 6 to 2 and then get a one day Travel card (about £6 ish)