geez, sounds like you have a lot of books!! my first thought was EBAY!
Mine too.

Have a think about it. Will you ever take the stuff out of storage? Where would you put it if you did? Do you really need the stuff or could you live without it? Is it worth paying for it to be stored? (alot of questions lol)

I say put it on ebay and watch the $ roll in then go on a massive holiday!