I just finished reading the Sean Russell Swan's War trilogy and thought it was great. All three books are on sale at Amazon for $.99 each. Here's a link to the first book:
http://www.amazon.com/One-Kingdom-Bo...s=swan%27s+war
Also, the first book in M. Edward McNally's Norothan Cycle is free from Amazon and is excellent:
http://www.amazon.com/Sable-City-Nor...edward+mcnally
The other books in the series are $4.99 each and are well-worth the price.