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.
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nobody has flashed me plus the police have not pulled me, maybe because ive kept the stock yellow sidelights
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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