I have been looking for a decent amount of test data for giving a demo of my test program and I came across this website

I hosted this data generator in my website at the following location , one can make use of it for free


This is capable of generating sample data (name , phone number , email , address etc ) in XML, HTML, CSV, SQL, Excel formats.
Do drop a note as comment to this post if you find it useful.

I also found the this  page describing some other data generator tools.