Monogram programs/labels, etc.

Hello all,
Just wanted to ask after seeing everyones crafty monogram programs, etc. how do I make these on the computer OR where can I buy interesting monogrammed programs/labels online?? please let me know. I want to incorporate our monogram into the wedding a lot

creativemontage.com - $10 for 10 monograms.

myownweddinglables.com - are great for labels. I ordered form ther for my std's.