Will, I always answer questions like this with a trip to Baen, and the best place to start is their free library:
http://www.webscription.net/c-1-free-library.aspx
See:
Old Nathan
by David Drake
Original Edition of edited Godwin Stories
Original Edition of edited Schmitz Stories
Ring of Fire (Part of the 1632 series, and it makes more sense if your read the free 1632 first)
T.N.T:Telzey and Trigger, also the related collection:
Telzey Amberdon
Of course there are many more full length (and free) novels there.