Direct Mail Service Recommendations

[Derek Morrison]

Forgive me in advance, I'm sure this has been asked hundreds of times before, but I'm not sure where and I don't know how to search the forums:

I'm looking to start some direct mail campaigns. I've created a few marketing pieces in publisher, and a few letters in Word. I have an excel spreadsheet with the names and addresses of roughly 200 people. I'd like to be able to have my contacts' names be on the letters/marketing pieces (to make it feel more personal), as well as on the envelopes (obviously). What do you guys recommend for this?