My choice for in-wall speakers in that price range would probably be PSB speakers. The PSB CW363 is one good one, but they have several that might be of interest.
The Audio Advisor website has a lot of PSB in-wall speakers listed; they have a whole "In-wall speaker" section and list several other brands too.
How many speakers depends on a lot of factors. More people means you need more power, and also if you are talking about background music that takes a lot less power than cranking it up loud for dancing or just loud partying.
All of those factors are going to determine the power handling rating required for each speaker and how many speakers and how much amplifier you need to drive them also.
Don't get speakers that are too small. It is very common for in-wall speakers to overheat and burn out if they are too small. A poster 2 days ago reported that his Klipsch ceiling speakers had burned out twice already. They only had a 40 watt RMS rating (and I question that), and that obviously was not enough for the way he was using them; he smoked them pretty good, apparently.
Most manufacturers of in-wall speakers do not give an actual power rating for them. They do usually give a range of recommended amplifier power, however. I would look for speakers that have a recommended amplifier power range that goes up to over 100 watts.
Originally Posted by bballgms
I am remodeling the house and my great room, where guests and gatherings will be held, is a 28 by 22 room. I am only using this room specifically for music for entertainment for guests and parties, no movies or anything like that. and for aesthetic reasons i want to go with in-wall or in ceiling speakers. which one should i go with? should i go with two very well designed speakers or go with more speakers? also what speakers should i be looking at if i have about a 1500 budget give or take.