I can't attest to how good it is yet because I've only recently purchased and haven't had a chance to try much with it, however Campaign Cartographer 3+ might be worth a look. It is a bit of a learning curve, though mostly because it means getting used to a CAD software - but I've seen some nice looking stuff done with it. There are a lot of symbol expansions (Symbol Set 3 is for modern maps), though most of them appear to be in their Annuals - September 2007 has a city map style, June 2010 has a modern political map style, and May 2011 has modern road map style,
I picked up a collection at Humble Bundle a little while ago but apparently it has featured there two or three times, so it's worth keeping an eye open for deals like that.
I plan to use my annual leave in January to try and get a handle on it, so I'll update with the results and let you know if I'm impressed or just back to seeking another solution.