This is where a good agent is valuable. Some homes are overpriced, some under and a few are just right. Short sales should go for less than other homes that are essentially similar but not short sales, otherwise why wait 90 to 180 days or even more without knowing if you will ever get to buy the home?
Find your own agent to represent you and do the research to determine fair value and assist on an offer strategy for the home you want to own. Remember, you are investing more than just money. You will be there a few years, make many memories and it should be a place you really enjoy. Best of luck.