A new CS Mapping site has been launched, on it you'll find some very nice maps. Here's something I saw on their website
Click!On this Site you will find several Counter-Strike-maps. We offer maps of a very high quality standard, comparable with the official CS-maps. Unfortunately only about a dozen different maps are played in the Internet. We try to change that by adding new, creative and good looking new maps, to make Counter-Strike even more interesting. All maps have been tested in several LAN-parties before.