We ended up booking a condo at Mana Kai. With the airline employee discount it was $1078 with all taxes for 6 nights. I did a lot of reading and people were overall very satisfied with it for the price. It's right on the edge of Kihei and Wailea.
I found a very useful web site during my research:
http://www.tripadvisor.com/
Sort of like Epinions, but for travelers.