I was in Vegas a few weeks ago and I stayed in Harrahs Hotel. It's right in the middle of the Strip, has a monorail stop, is cheaper than some of the other hotels nearby yet is still excellent.
Also www.lasvegasculture.co.uk/ is a new site on Vegas and has some good info added daily.
Harrah's Las Vegas
3475 Las Vegas Blvd South
Las Vegas, NV 89109
www.lasvegasculture.co.uk/