You could do a repair if its not too bad for now. They do the stuff in halfords, exhuast putty etc...
The center section is the part that fell off my car when i was miles away from my house.
http://www.buypartsby.co.uk/exhausts_details.php?recordID=1866
£26+ VAT for the down pipe on that website. Possibly the scrappies might be a good bet as im always seeing new systems on micras in there...got my other exhuast from the scraps, all for £15 and still shiny new metal with stickers on!