FSMAP

Hi Iam new to FSMAP and I would like to know where I can purchace or down load Maps that are in the same format and are configured to work in FSMAP. When I say the same I meen Maps that look like maps with Roads and Rivers Aiports etc.I almost always fly LOW ALTITUDE around the United Kingdome Europe and America I would especialy like Maps Of The U.K. Your help would Realy be Aprecciated!!.
Ifly FS9and FSX Regards Chewit.
Ifly FS9and FSX Regards Chewit.