Flights/Hotel deals for Vegas

I'm planning out a trip for me + 3 guys total to Vegas in late June / early July to play poker / watch some of the WSOP. Looking to stay 4 nights I believe. I think the consensus among us is to get a hotel on the strip, but I might even consider Fremont St. Seems like everyone wants a hotel with a pool also.

We stayed at Imperial Palace in '05, and were not pleased, mainly due to the constant difficulty of getting an elevator up to our room. Right now I'm just checking prices and flights on expedia.com, orbitz.com, and hotels.com. Looks like $665 @ Excalibur might be the best price for what I need (flying out of Newark, NJ).

Does anyone know of any other travel websites or travel agencies that could possibly offer a better travel deal? Or does anyone know of any hotels that offer their own room/package promotions.

Any room/airline/promotional feedback is appreciated.

Thanks