Needing a good postcard printer - who is QUICK!

[Cindy Carriger]

I've been using a printer that is taking too long to send me proofs, then get out my mailers!  I usually have to hound them...not loving that too much.  I use a standard size colored postcard with black ink, and i supply them with the 'copy' that they put on the card, then send me a "proof" before going out to print.  So, i'd like someone who can do similarly on a timely basis.  Thanks for any suggestions!