Expedia is currently running a promotion with discounts at participating hotels PLUS an additional $100 rebate (in the form of a prepaid debit card) for reservations of $400 or more. They’re advertising this as a flight+hotel promotion, but I don’t believe a flight is required. You must book before April 2 with travel completed by April 23.
Unfortunately, most of the hotels are relatively low-end. There are still some deals to be had. You could get a trip to Vegas for $400 including your flight and four nights in a budget/mid-range hotel. Or you could go to Cancun for $700-1,000. I like Cancun better. 🙂