Sorry, i know this subject has already come up on this board as I have done a search but it keeps referring people to biddingfortravel.com and unfortunately that site is blocked from my computer and I can't get in it. Therefore, could anyone advise me if I bid for a 4 or 5* Hotel on South Strip, what I am likely to get and how much roughly should I try and bid? Appreciate any advice you could give.

Don't know what days you want to bid on but weekends in Vegas are impossible on priceline. When bidding, check the hotel web sites and some booking sites (like expedia, orbitz, etc) for hotels in the class you are interested, for the dates your looking at. Then bid roughly 1/2 to 2/3 the average asking price. In vegas, there are areas with no 4 & 5* hotels at all so if your bid is rejected, just add one of these locations and rebid at a higher rate. The prices in vegas hotels vary much depending on day of week and time of year (big convention or event weeks, prices go up, also weekends).

We tried priceline for a march visit but it was a weekend and we couldn't get anything. After that, we closely watched the prices (they changed almost daily) and booked (directly with hotel) when they seemed to be low. After a week or so, they went down more, we cancelled and rebooked. After that they shot up to over $100 more per night than we paid. We also got a AAA discount of 10%. Hotels don't seem to mention that these discounts are available, so when calling for reservations, ask about discounts.

From the posts at BFT, it looks like the only hits at the 4 star or higher level on the strip are at the Venetian for around $100-$120, with one or two as low as $80 or $90. Most of the big name hotels on the strip seem to have basically no hits, with only the Hilton (off the strip) and the Flamingo (3 stars) listed more than once. If you must have a south strip place, and depending on your needs and travel dates, you may be better off trying another approach, such as the hotel web sites.

For Vegas try tripreservations.com

Just remember when booking through these reservation services, to check the cancelation policy, often no refunds allowed.

If you go to the hotel website (not the chain website) you may find prices lower than ones priceline, expedia, or orbitz can offer.
I personally don't like priceline because their prices are not lower than the ones expedia or orbitz offer. At least with expedia or orbitz you know what hotel you are going to stay at before making the purchase.

I think Vegas is one of the few areas where better deals can often (not always) be had thru conventional means than via Priceline, especially when food credits and show tickets are thrown into the deal.

One word of caution though, Priceline's "South Strip" area also includes hotels that are NOT directly on the strip (like the Rio for example), so Priceline is not an ideal choice if you absolutely want to be "on the strip."

I'm a big fan of priceline for certain big cities (i.e. new york) where the price difference can be $100 a night in savings, but I haven't ever found any substantial hotel rate that couldn't be significantly beaten by going to a las vegas hotel web site itself. MAYBE you'll save $5 if you try hard enough, but frankly, I'll spend that extra $5 a night to know where I'm staying and possible cancel my reservation outright with a refund.