This site is quite old but I really did not get a chance to hear reviews about it from other webmasters.
Here it is Sweet SMS Collection - Love SMS, Funny SMS, Funny Poetry, Good Morning SMS, Good Evening SMS and so much more
There you will find SMS in English & Urdu language. I don't know about western countries but here in India & Pakistan this SMS thing is very much popular and young generation is like crazy about them
Take a look at the site and let me know what you think?