The hunt for the darn door

Hey there all, Anyone out there have any tips on where to go to find a couple of exterior patio doors?
I am not so excited by the Home depot variety (or lack thereof)and am looking for places to check out in the old zip car this weekend. I need something secure, sturdy but yet pretty as one door will be going in what will one day be our bedroom leading out to the garden and the other will be going into our dining room leading out to our deck. Your help is greatly appreciated.
Once I buy these darn doors–I might have someting to actually post about on the southstuy reno blog.
Thanks!