I recently discovered a new American stamp company called Wplus9, if you click on my blogspot and scroll down my sidebar you will see their logo.
I live in UK and I have ordered their stamps which stamp perfectly!! and their dies are 100% ... looooove them!
I love Papertrey too, but have to save up alot to purchase from them as shipping is very expensive to UK, Wplus9 shipping is very good.
Apart from those dies I love Die-namics and good ole Sizzix ... LOL
hope this helps