I would sell it on ebay, but 3 times now a hackers tried to get me to send it to Nigeria for his orphaned, adopted child-prodigy exchange student at 7 times the price.
£150 - it's boxed, brand new, unlocked etc.
Pm if you want it, or know anyone who does.
Link:
http://www.sonyericsson.com/spg.jsp?cc=gb&lc=en&ver=4000&template=pip1&pid=10336&zone=pp