I can also vote for Simian for a small market station. I'm actually using the integrated sound card on our machine. Now were satellite, but we can still do overlapping audio in the breaks, it will play wavs or mp3's no problem. We record lots of backround feeds flawlessly. Infact, it trims the silence from the beginning and end of any feeds it records. We are a Dial Global 24/7 affiliate with CNN News, Nascar, Yankee Baseball and various westwood one sports. Siman handles it all with no major issues. The last version is very stable and works great. Interfaces with pretty much any broadcast tools unit, or anything controlled via serial port.
Now it does run best left alone. If you are doing alot of live programming with it, it's not the best. But if you leave the thing run all day on it's own, it works great.
Also a second for Natural Log. Once you take a few hours to play with it and learn it, it's very easy to use, and honestly, seems to work better and has just as many features as Wicks/Deltaflex/CBSI that the big groups are using.
I use VNC and PC Anywhere to control both the on air and traffic systems for the station which is 600 miles away. Have a old Pentium II with windows 2k encoding a shoutcast 48k AAC stream so I can listen to it. I haven't even logged into that machine for over 6 months. It just keeps working!
Also look into the radio spider at
www.digitaljukebox.com . It will download any web feeds for you at a schedule you give it, rename them if you want, convert file type if you want, and drop it into your automation. We use this for westwood one feeds and our weather.
Let me also reccomend Radio Forecast Network. 3 min a day of barter, and they provide all of your forecasts. We've been with them 2 years, and they have never missed one forecast. I can't say that about the "accu" guys. Works flawlessly with the Radio Spider software too.