could have been knocked or taken a hit on a pot hole, something like that, also tyre pressures as said... best get it checked out properly as you might need a new beam if its quite far out.
http://www.taxdisc.direct.gov.uk/EvlPortalApp/application?origin=vnav_bar.jsp&event=bea.portal.framework.internal.refresh&pageid=Home vehicle enquiry (4th button down) That tells you if its still got a current licence or if its sorn.
How about put the effort and time in to do it naturally? might give you more of a sense of pride. 8-) Im not going to say any more on this subject, i dont think it should be talked about on a forum where there is not enough info to show people the full picture on what they are all about.
if its a general rough running issue also try disconnecting your maf and seeing how it runs, it could be that just needs a clean with some contact cleaner.
stick with OEM ones, if you are planning on going FI sometime soon then go with magnecor & get NGK spark plugs while you're at it. You can repair your coil pack with epoxy resin if it has cracks in it and that is the cause of the problem. If not stick with OEM on that too.
Yeah, try your councils website. Once it's noted on their system they have a set time to get them repaired based on the road type and how deep the pot holes are. I got caught with one and it cost me £475. They never paid out so now I report every one I see!! Haha