Jo10, pls check your PM. Price range varies a lot. Some was close to $30K for 24hr for 1 month! Others around $20K. Depends on their experience and their "name". They tend to put a premium on price when they hear it's twins. Mine was $15K (i think) for 8 hour/ day for 1 month. Mine wasn't too famous so price was not as crazy.
<a href="http://lilypie.com"><img src="http://b1.lilypie.com/xOHXp8.png" alt="Lilypie 1st Birthday Ticker" border="0" /></a>