lol i'm in london right now study abroad and going to school... now as far as working visas go- what everyone has already said is pretty much right- your best bet is to go to school here- (grad school or enroll in another bachelors program- but doesn't seem you want to do that) or you can try to do a nanny program over here.... i know that they always need au pairs and stuff like that... do some searches online- i'm sorry but i don't know too much about this area... Bunac can help you for 3 months.... and its widely accepted... hmm i'll see if i can dig up some information about living over here.... i'm also working over here (PM if you want details- its kinda on the DL) i'll see what i can find- keep looking for information and i'll ask decadence too- he's been a great help to me over here
good luck and i'll be in touch- p.s. england is pretty different- have you ever been here before? i have LOTS of tips and advice too! anywya- keep your hopes up- i'm sure something can be worked out...