Here's the best deal I could find for a weekend. Its at the Monte Carlo which has nice rooms. Pool is not the best on the strip and no nightclubs to speak of but a good place to stay in a great location!
The rates for dates in question:
31- $130
1- $290
2- $170
Monte Carlo promo code link use promo code: VEGAS and it expires 9/13/07
Here's a virtual tour if you want to see inside the hotel:
Monte Carlo Hotel
Let me know if you have any more questions.