If my budget were $1000 I would get a Larrivee. In fact, when my budget was 1k, I did. Great all around guitar, sounds halfway between a Taylor and Martin. Their whole line is really balanced tone wise, whereas Martins are gonna be warmer, Taylors brighter, etc. Figure out what body type you like and run with it.
If I had $1000 and wanted something that sounded like a Martin, I might look into one of the solid wood BlueRidge's. Apparently they have gotten pretty good, and sound very, very close to a Martin dread. The BR-160 is a slid Rosewood back and side, spruce top dread, retails for like $750- and apparently is a dead ringer soundwise for a D-28. I was up in NC and saw a ton of these things in pickin' circles:
http://www.elderly.com/new_instruments/items/BR160.htm