As a map maker
i do it the complicated way.
If you recompile the entities and stuff on maps it doesnt actually need to be redownloaded, so you can recompile a map with sprites for your server, and peopel wont have to redownload it, use winbsp to decompile it to .map, and then open it in notepad and add the sprites.. uhh, there was a tutorial on countermap i think..
http://countermap.counter-strike.net i think the URL is, but i cant remember for certain