Go to this site and check out the Versacorder. It records on a regular 90 minute audiotape over three hours on one side. Plenty of time for Rush's show and you can time it to start and stop recording. Also, if you don't want to drag the big recorder around work, you can get the 1/4 speed player (The size of a Walkman) and listen to the previous show while the Versacorder is running at home recording the one that's on while you're at work.
I know I have a slight addiction to talk radio. It's worth it. Nice to keep informed.
Here's another: I work in an office 30 miles from the nearest a.m. radio station that carries Rush. In the office there are fax machines, copy machines, printers, etc. that generate lots of white noise so it is impossible to pick up this a.m radio station.
A friend in another office 90 miles away, where Rush is broadcast on f.m. connects the radio to the mike imput of his computer and records the sound. A three hour show is about 107 Megabytes and I download it off the server the next day. It takes about 2 minutes to get the entire program. I can listen and fast forward past the commercials and its static free!
You may want to consider this as another recording method since you probably have Windows recording and Windows Media Player available on your PC.
I owe my friend big time since I plan to download today's and tomorrow's Rush programs to see what he has to say about Daschle.