Last min. Airfare? Where can I find it?

Question

Story:

I am looking for a small get out of town trip this weekend.

I want to leave DFW airport (dallas, tx) early on Sat morning 5-31-08 and return

late sunday 06-01-08

i have searched a few sites but i am tired of inputing diff destinations to find a really cheap deal.

Question:

What site can I go to where I can input...

1. Departure city = DFW

2. Dates = 05-31-08 --> 06-01-08

3. Max I will spent = $150.00

and get an output of all the places that match...

i dont care too much where i go. just outside of Texas.

every site i have gone to so far requires a destination. i dont know where i want to go yet!

any ideas?

thanks