Google real estate is good, but slow on my computer at work.
I use realtor.com
One thing to note when crafting your search is that not all information is entered correctly on the MLS.
For example, if you search for a house with 3+ car garage, the listing may have it as only having a 2 car. Therefore, the house would be excluded from your search.
I suggest signing up for the site, crafting low level search restricting price and area and let it email you new listings.