point and shoots are pretty simple, i understand that you want to compare and read reviews on cameras but your first step should be going to a store and just browsing their selection. Find one that meets your criteria of a large lcd and just make sure its a higher megapixel than the others. for your price range you might be able to get an 8 mp or higher as they've become pretty affordable these days.
I like having a viewfinder, this might be something you'd might like to consider as well before purchasing.
with P&S cameras the zoom is almost always digital therefore if you zoom, it'll be pixelated.
unfortunately i dont really know the models of point and shoot cameras but if you go to a store, pick out a few and come back here with the names of those you like and we can compare the specs.