Miles advise please

I have 18500 miles converted to HH points. I have no real need to use them, any ideas from all you experts how to make the most of them.
Can I sell them?
Is it worth converting back to Virgin miles?
Blah Blah.
Many thanks in anticipation.
Steve

[mcmbenjamin]

What are your travel plans in the next year and how would you like to use them?