how about a xenon kit, have you looked on sites like hids4u and hids-direct. you can get kits for around £70 now
i have the xenon h7 ultimate kit from hids4u and all i can say is wow.. i know they are illegal with the strange law about having to have washer jets but aside from that they are very powerfull, main reason i got them as i work nights.
nobody has flashed me plus the police have not pulled me, maybe because ive kept the stock yellow sidelights
removed them within 5minutes for my m.o.t passed perfectly
also i left them in when was due in a service, even the vw technician commented on how bright they was