Carlson,
FYI, the IR543 has been on backorder for several weeks now but is shiping this week. Most all places should have them by the end of the week, or so. I do have some in stock if you have not yet found one (I didn't respond because I figured you would have found one by now, WOW, you arn't an impulse buyer!). If you would like for me to ship you one, let me know. I ship all over the world, everyday! P.S. Have you tried
www.radioshack.com?
Xtremist