There is kind of a cool Photoshop plugin that makes it easier to remove telephone wires from a still photo. You can download it today only (3/6/10) for free at http://www.giveawayoftheday.com/Giveaway of the Day[/link].
I installed it but hadn't bothered to read the user comments. Doesn't seem so promising after all. One of the users mentioned a program he prefers called "Wire Worm" which actually does look pretty good and is always free:
Wireworm is actually a plug-in. I just tested it w/ Paint Shop Pro X2 and works pretty good and fast. It's basically a looong clone brush wih some nice features. Nice tool to have and I can see using it.