You should be fine. Here's some rate info:

Quikbook.com
Bally's
Standard Room
$95 11/21/2002
$131 11/22/2002
$131 11/23/2002

Harrah's Las Vegas
Standard Room
$180
$131
$143

Monte Carlo Resort and Casino
Standard Room
$84
$148
$148

Paris
Standard Room
$123
$174
$174

Flamingo Las Vegas
Standard Room
$87
$99
$99

Alexis Park Resort
Suite
$83
$107
$107

Las Vegas Hilton
Standard Room
$88
$88
$88

Hilton Grand Vacations @ Las Vegas Hilton
Studio Suite
$102
$102
$102

Rio All Suite Hotel & Casino
Standard Deluxe Suite
$107
$167
$167

I suggest you do some research (LA Times, Quikbook, Expedia, Cheapovegas.com, Hotels.com, and individual websites) and book now. Keep an eye on things closer to your date to make sure your rate is still the lowest. Have a good time!

If you'd like any advice please post more info about what kind of experience and price range you're after.